function drawChartTreatmentsPerYear() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['2023', 4984],
    ['2022', 10233],
    ['2021', 10451],
    ['2020', 3044],
    ['2019', 2522],
    ['2018', 5762],
    ['2017', 1991],
    ['2016', 2954],
    ['2015', 1935],
    ['2014', 3115],
    ['2011', 2224],
    ['2007', 9053],
    ['1976', 2952],
    ['1956', 2668],
    ['1753', 2976],
    ['Other (201)', 14867]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Year (n=81731)',
    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);