function drawChartTreatmentsPerYear() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['2023', 1349],
    ['2022', 1757],
    ['2021', 1656],
    ['2020', 1378],
    ['2019', 1893],
    ['2018', 1042],
    ['2017', 1580],
    ['2016', 2856],
    ['2015', 1413],
    ['2014', 1506],
    ['2013', 567],
    ['2012', 863],
    ['2011', 694],
    ['2010', 723],
    ['2008', 603],
    ['Other (186)', 5069]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Year (n=24949)',
    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);