function drawChartTreatmentsPerYear() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['2023', 5100],
    ['2022', 4758],
    ['2021', 6573],
    ['2020', 3238],
    ['2019', 3296],
    ['2018', 3575],
    ['2017', 3053],
    ['2016', 4285],
    ['2015', 3474],
    ['2014', 3078],
    ['2013', 4128],
    ['2012', 2614],
    ['2011', 2319],
    ['2010', 2094],
    ['2007', 3171],
    ['Other (226)', 16264]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Year (n=71020)',
    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);