function drawChartTreatmentsPerYear() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['2023', 6433],
    ['2022', 10642],
    ['2021', 10912],
    ['2020', 3124],
    ['2019', 2720],
    ['2018', 5864],
    ['2017', 2202],
    ['2016', 3502],
    ['2014', 3833],
    ['2013', 2080],
    ['2011', 2451],
    ['2007', 9377],
    ['1976', 2960],
    ['1956', 2668],
    ['1753', 2970],
    ['Other (209)', 16018]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Year (n=87756)',
    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);