function drawChartTreatmentsPerYear() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['2023', 3097],
    ['2022', 3955],
    ['2021', 5724],
    ['2020', 2814],
    ['2019', 6022],
    ['2018', 4789],
    ['2017', 4536],
    ['2016', 3175],
    ['2015', 3176],
    ['2014', 4629],
    ['2013', 2769],
    ['2011', 2956],
    ['2005', 11730],
    ['1993', 6093],
    ['1982', 5534],
    ['Other (246)', 39791]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Year (n=110790)',
    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);