function drawChartTreatmentsPerYear() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['2024', 10],
    ['2018', 19],
    ['1951', 9],
    ['1929', 8],
    ['1925', 8],
    ['1910', 12],
    ['1908', 16],
    ['1907', 25],
    ['1906', 21],
    ['1905', 8],
    ['1892', 21],
    ['1889', 7],
    ['1887', 10],
    ['1878', 10],
    ['1873', 9],
    ['Other (84)', 215]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Year (n=408)',
    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);