function drawChartTreatmentsPerYear() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['2024', 17],
    ['2023', 3],
    ['2008', 6],
    ['1953', 13],
    ['1928', 2],
    ['1923', 15],
    ['1922', 21],
    ['1921', 3],
    ['1919', 6],
    ['1915', 3],
    ['1914', 17],
    ['1912', 10],
    ['1909', 18],
    ['1893', 2],
    ['1884', 2],
    ['Other (15)', 16]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Year (n=154)',
    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);