function drawChartTreatmentsPerYear() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['2023', 104],
    ['2022', 62],
    ['2021', 163],
    ['2020', 126],
    ['2018', 335],
    ['2017', 141],
    ['2016', 273],
    ['2015', 184],
    ['2014', 114],
    ['2013', 893],
    ['2012', 187],
    ['2011', 54],
    ['2010', 208],
    ['2009', 49],
    ['2005', 86],
    ['Other (21)', 203]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Year (n=3182)',
    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);