google.charts.load('current', {'packages':['corechart']});
google.charts.setOnLoadCallback(drawChart);
function drawChart() {
var data = google.visualization.arrayToDataTable([
['Career Role', 'Percentage'],
['Renewable Energy Engineer', 30],
['Solar Energy Technician', 25],
['Wind Energy Analyst', 20],
['Bioenergy Specialist', 15],
['Hydropower Project Manager', 10]
]);
var options = {
title: 'Global Certificate in Renewable Energy Technologies Career Roles',
is3D: true,
pieSliceText: 'percentage',
sliceVisibilityThreshold: 0
};
var chart = new google.visualization.PieChart(document.getElementById('piechart'));
chart.draw(data, options);
}