function drawChartTreatmentsPerYear() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['2023', 424],
    ['2022', 435],
    ['2021', 1123],
    ['2020', 348],
    ['2019', 1399],
    ['2018', 561],
    ['2016', 242],
    ['2014', 846],
    ['2013', 267],
    ['2012', 224],
    ['2011', 316],
    ['2010', 322],
    ['2007', 368],
    ['2004', 191],
    ['2003', 219],
    ['Other (218)', 7908]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Year (n=15193)',
    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);