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/*
 Highcharts JS v5.0.14 (2017-07-28)
 Accessibility module

 (c) 2010-2017 Highsoft AS
 Author: Oystein Moseng

 License: www.highcharts.com/license
*/
(function(r){"object"===typeof module&&module.exports?module.exports=r:r(Highcharts)})(function(r){(function(e){function r(a){return a.replace(/&/g,"\x26amp;").replace(/g,"\x26lt;").replace(/>/g,"\x26gt;").replace(/"/g,"\x26quot;").replace(/'/g,"\x26#x27;").replace(/\//g,"\x26#x2F;")}function A(a){for(var c=a.childNodes.length;c--;)a.appendChild(a.childNodes[c])}function k(a){var c;a&&a.onclick&&l.createEvent&&(c=l.createEvent("Events"),c.initEvent("click",!0,!1),a.onclick(c))}var z=e.win,l=z.document,
g=e.each,B=e.erase,x=e.addEvent,C=e.removeEvent,y=e.fireEvent,D=e.dateFormat,w=e.merge,t={"default":["series","data point","data points"],line:["line","data point","data points"],spline:["line","data point","data points"],area:["line","data point","data points"],areaspline:["line","data point","data points"],pie:["pie","slice","slices"],column:["column series","column","columns"],bar:["bar series","bar","bars"],scatter:["scatter series","data point","data points"],boxplot:["boxplot series","box",
"boxes"],arearange:["arearange series","data point","data points"],areasplinerange:["areasplinerange series","data point","data points"],bubble:["bubble series","bubble","bubbles"],columnrange:["columnrange series","column","columns"],errorbar:["errorbar series","errorbar","errorbars"],funnel:["funnel","data point","data points"],pyramid:["pyramid","data point","data points"],waterfall:["waterfall series","column","columns"],map:["map","area","areas"],mapline:["line","data point","data points"],mappoint:["point series",
"data point","data points"],mapbubble:["bubble series","bubble","bubbles"]},E={boxplot:" Box plot charts are typically used to display groups of statistical data. Each data point in the chart can have up to 5 values: minimum, lower quartile, median, upper quartile and maximum. ",arearange:" Arearange charts are line charts displaying a range between a lower and higher value for each point. ",areasplinerange:" These charts are line charts displaying a range between a lower and higher value for each point. ",
bubble:" Bubble charts are scatter charts where each data point also has a size value. ",columnrange:" Columnrange charts are column charts displaying a range between a lower and higher value for each point. ",errorbar:" Errorbar series are used to display the variability of the data. ",funnel:" Funnel charts are used to display reduction of data in stages. ",pyramid:" Pyramid charts consist of a single pyramid with item heights corresponding to each point value. ",waterfall:" A waterfall chart is a column chart where each column contributes towards a total end value. "};
e.Series.prototype.commonKeys="name id category x value y".split(" ");e.Series.prototype.specialKeys="z open high q3 median q1 low close".split(" ");e.seriesTypes.pie&&(e.seriesTypes.pie.prototype.specialKeys=[]);e.setOptions({accessibility:{enabled:!0,pointDescriptionThreshold:30,keyboardNavigation:{enabled:!0,tabThroughPoints:!0}}});e.wrap(e.Series.prototype,"render",function(a){a.apply(this,Array.prototype.slice.call(arguments,1));this.chart.options.accessibility.enabled&&this.setA11yDescription()});
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e.Series.prototype.buildSeriesInfoString=function(){var a=t[this.type]||t["default"],c=this.description||this.options.description;return(this.name?this.name+", ":"")+(1===this.chart.types.length?a[0]:"series")+" "+(this.index+1)+" of "+this.chart.series.length+(1===this.chart.types.length?" with ":". "+a[0]+" with ")+(this.points.length+" "+(1===this.points.length?a[1]:a[2]))+(c?". "+c:"")+(1<this.chart.yAxis.length&&this.yAxis?". Y axis, "+this.yAxis.getDescription():"")+(1<this.chart.xAxis.length&&
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function(){var a=this.types&&this.types[0],c=this.series[0]&&this.series[0].mapTitle;if(a){if("map"===a)return c?"Map of "+c:"Map of unspecified region.";if(12>a)d.xAxis+=this.xAxis[0].getDescription()+".";else{for(b=0;bc)d.yAxis+=this.yAxis[0].getDescription()+".";else{for(b=0;bthis.exportDivElements;a&&(g(a,function(a){"DIV"!==a.tagName||a.children&&a.children.length||(a.setAttribute("role","menuitem"),a.setAttribute("tabindex",-1))}),a[0].parentNode.setAttribute("role","menu"),a[0].parentNode.setAttribute("aria-label","Chart export"))};e.Point.prototype.highlight=function(){var a=this.series.chart;this.graphic&&this.graphic.element.focus&&this.graphic.element.focus();this.isNull?a.tooltip&&a.tooltip.hide(0):(this.onMouseOver(),a.tooltip&&a.tooltip.refresh(a.tooltip.shared?
[this]:this));a.highlightedPoint=this;return this};e.Chart.prototype.highlightAdjacentPoint=function(a){var c=this.series,d=this.highlightedPoint,b=d&&d.index||0,f=d&&d.series.points,m=this.series&&this.series[this.series.length-1],e=m&&m.points&&m.points[m.points.length-1],m=d&&d.series.connectEnds&&b>f.length-3?2:1;if(!c[0]||!c[0].points)return!1;if(d){if(f[b]!==d)for(e=0;e2:1)];if(void 0===b)return!1}else b=a?c[0].points[0]:e;return b.isNull&&this.options.accessibility.keyboardNavigation.skipNullPoints||b.series.options.skipKeyboardNavigation||!b.series.visible?(this.highlightedPoint=b,this.highlightAdjacentPoint(a)):b.highlight()};e.Chart.prototype.showExportMenu=function(){this.exportSVGElements&&this.exportSVGElements[0]&&(this.exportSVGElements[0].element.onclick(),this.highlightExportItem(0))};e.Chart.prototype.highlightExportItem=function(a){var c=this.exportDivElements&&
this.exportDivElements[a],d=this.exportDivElements&&this.exportDivElements[this.highlightedExportItem];if(c&&"DIV"===c.tagName&&(!c.children||!c.children.length)){c.focus&&c.focus();if(d&&d.onmouseout)d.onmouseout();if(c.onmouseover)c.onmouseover();this.highlightedExportItem=a;return!0}};e.Chart.prototype.highlightRangeSelectorButton=function(a){var c=this.rangeSelector.buttons;c[this.highlightedRangeSelectorItemIx]&&c[this.highlightedRangeSelectorItemIx].setState(this.oldRangeSelectorItemState||
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function(){var a=this.exportDivElements;if(a){g(a,function(a){y(a,"mouseleave")});if(a[this.highlightedExportItem]&&a[this.highlightedExportItem].onmouseout)a[this.highlightedExportItem].onmouseout();this.highlightedExportItem=0;this.renderTo.focus()}};e.Chart.prototype.addKeyboardNavEvents=function(){function a(b){this.id=b.id;this.keyCodeMap=b.keyCodeMap;this.move=b.move;this.validate=b.validate;this.init=b.init;this.terminate=b.terminate;this.transformTabs=!1!==b.transformTabs}function c(c,d,e){return new a(w({keyCodeMap:d,
move:function(a){this.terminate&&this.terminate(a);b.keyboardNavigationModuleIndex+=a;var c=b.keyboardNavigationModules[b.keyboardNavigationModuleIndex];if(c){if(c.validate&&!c.validate())return this.move(a);if(c.init)return c.init(a),!0}b.keyboardNavigationModuleIndex=0;b.slipNextTab=!0;return!1}},{id:c},e))}function d(a){a=a||z.event;var c=b.keyboardNavigationModules[b.keyboardNavigationModuleIndex];9===(a.which||a.keyCode)&&b.slipNextTab?b.slipNextTab=!1:(b.slipNextTab=!1,c&&c.run(a)&&a.preventDefault())}
var b=this;a.prototype={run:function(b){var a=this,c=b.which||b.keyCode,f=!1,c=this.transformTabs&&9===c?b.shiftKey?37:39:c;g(this.keyCodeMap,function(d){-1a?1:-1)}],[[13,32],function(){b.highlightedPoint&&b.highlightedPoint.firePointEvent("click")}]],{init:function(){delete b.highlightedPoint},terminate:function(){b.tooltip&&b.tooltip.hide(0);delete b.highlightedPoint},transformTabs:b.options.accessibility.keyboardNavigation.tabThroughPoints}),c("exporting",[[[37,38],function(){for(var a=b.highlightedExportItem||0,c=!0;a--;)if(b.highlightExportItem(a)){c=!1;break}if(c)return b.hideExportMenu(),this.move(-1)}],[[39,40],function(){for(var a=!0,c=(b.highlightedExportItem||
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(e.chart.typeDescription||d.getTypeDescription())+"\x3c/div\x3e"+(1===b.length?"\x3cdiv\x3e"+q[0]+" with "+b[0].points.length+" "+(1===b[0].points.length?q[1]:q[2])+".\x3c/div\x3e":"")+(h.xAxis?"\x3cdiv\x3e"+h.xAxis+"\x3c/div\x3e":"")+(h.yAxis?"\x3cdiv\x3e"+h.yAxis+"\x3c/div\x3e":"");d.getCSV&&(p.innerHTML="View as data table.",p.href="#"+c,p.setAttribute("tabindex","-1"),p.onclick=g.onTableAnchorClick||function(){d.viewData();l.getElementById(c).focus()},k.appendChild(p),n.appendChild(k));v.innerHTML=
"Chart graphic.";d.renderTo.insertBefore(v,d.renderTo.firstChild);d.renderTo.insertBefore(n,d.renderTo.firstChild);w(!0,v.style,u);w(!0,n.style,u)};e.Chart.prototype.callbacks.push(function(a){var c=a.options,d=c.accessibility;if(d.enabled){var b=l.createElementNS("http://www.w3.org/2000/svg","title"),f=l.createElementNS("http://www.w3.org/2000/svg","g"),m=a.container.getElementsByTagName("desc")[0],n=a.container.getElementsByTagName("text"),k="highcharts-title-"+a.index,p="highcharts-data-table-"+
a.index,v="highcharts-information-region-"+a.index,u=c.title.text||"Chart",h=c.exporting&&c.exporting.csv&&c.exporting.csv.columnHeaderFormatter,q=[];b.textContent=r(u);b.id=k;m.parentNode.insertBefore(b,m);a.renderTo.setAttribute("role","region");a.renderTo.setAttribute("aria-label","Interactive chart. "+u+". Use up and down arrows to navigate with most screen readers.");if(a.exportSVGElements&&a.exportSVGElements[0]&&a.exportSVGElements[0].element){var t=a.exportSVGElements[0].element.onclick,b=
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g(["minInput","maxInput"],function(b,c){a.rangeSelector[b]&&(a.rangeSelector[b].setAttribute("tabindex","-1"),a.rangeSelector[b].setAttribute("role","textbox"),a.rangeSelector[b].setAttribute("aria-label","Select "+(c?"end":"start")+" date."))});g(n,function(a){a.setAttribute("aria-hidden","true")});a.addScreenReaderRegion(v,p);d.keyboardNavigation.enabled&&a.addKeyboardNavEvents();w(!0,c.exporting,{csv:{columnHeaderFormatter:function(a,b,c){if(!a)return"Category";if(a instanceof e.Axis)return a.options.title&&
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