function drawChartTreatmentsPerYear() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['2023', 167],
    ['2022', 812],
    ['2021', 496],
    ['2020', 165],
    ['2018', 297],
    ['2017', 168],
    ['2015', 869],
    ['2014', 417],
    ['2013', 371],
    ['2012', 372],
    ['2011', 568],
    ['2010', 482],
    ['2008', 170],
    ['2005', 162],
    ['1758', 631],
    ['Other (124)', 1424]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Year (n=7571)',
    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);