function drawChartTreatmentsPerYear() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['2024', 14],
    ['2021', 263],
    ['2020', 23],
    ['2019', 81],
    ['2018', 71],
    ['2017', 76],
    ['2014', 131],
    ['2013', 32],
    ['2012', 109],
    ['2011', 21],
    ['2010', 13],
    ['2009', 65],
    ['2006', 168],
    ['2005', 73],
    ['2002', 19],
    ['Other (12)', 53]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Year (n=1212)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerYear', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerYear'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerYear);