function drawChartTreatmentsPerYear() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['2024', 495],
    ['2023', 2742],
    ['2022', 1385],
    ['2021', 1133],
    ['2020', 883],
    ['2019', 453],
    ['2018', 416],
    ['2017', 204],
    ['2016', 177],
    ['2015', 141],
    ['2014', 443],
    ['2013', 265],
    ['2012', 232],
    ['2009', 81],
    ['2007', 216],
    ['Other (49)', 331]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Year (n=9597)',
    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);