Creating Pie Chart with Google Charts API from JSON

Question

right now I´m trying to create a pie chart from a JSON Output from my MySQL Database. I am quite new to JavaScript thats why I ask you for some help. I found the following proje

Answer 1

var data;
var chart;
google.charts.load('current', {
callback: drawChart,
packages: ['corechart']});
function drawChart() {
var results = [{"count":1,"year":"2009 "},{"count":3,"year":"2011 "},{"count":5,"year":"2012 "},{"count":9,"year":"2013 "},{"count":2,"year":"2014 "},{"count":1,"year":"2015 "},{"count":59,"year":"2016 "},{"count":4,"year":"2017 "}]
data = new google.visualization.DataTable();
data.addColumn('string', 'VoteName');
data.addColumn('number', 'VoteCount');
results.forEach(function(data1, index) {
data.addRow([data1.year,data1.count]);
});
var options = {title: 'My Pie Chart- Lujan',
width: 600,
height: 600};
chart = new google.visualization.PieChart(document.getElementById('chart_div'));
google.visualization.events.addListener(chart, 'select', selectHandler);
chart.draw(data, options);}
function selectHandler() {
// be sure something is selected
if (chart.getSelection().length) {
var selectedItem = chart.getSelection()[0];
var value = data.getValue(selectedItem.row, 0);
alert('The user selected ' + value);}
} **strong text**