function drawChartTreatmentsPerYear() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['2023', 464],
    ['2022', 886],
    ['2021', 749],
    ['2020', 485],
    ['2019', 846],
    ['2018', 440],
    ['2016', 462],
    ['2015', 449],
    ['2014', 651],
    ['2013', 314],
    ['2012', 428],
    ['2011', 575],
    ['2010', 363],
    ['2008', 503],
    ['2007', 307],
    ['Other (125)', 2207]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Year (n=10129)',
    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);