function drawChartTreatmentsPerYear() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['2023', 7040],
    ['2022', 7774],
    ['2021', 10566],
    ['2020', 6070],
    ['2019', 6551],
    ['2018', 7322],
    ['2017', 6835],
    ['2016', 7608],
    ['2015', 6831],
    ['2014', 7236],
    ['2013', 6840],
    ['2012', 5139],
    ['2011', 4830],
    ['2010', 3622],
    ['2009', 3897],
    ['Other (247)', 29307]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Year (n=127468)',
    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);