function drawChartTreatmentsPerYear() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['2023', 16],
    ['2022', 15],
    ['2021', 110],
    ['2020', 27],
    ['2019', 119],
    ['2018', 23],
    ['2014', 65],
    ['2013', 24],
    ['2011', 21],
    ['2010', 25],
    ['2007', 24],
    ['1931', 14],
    ['1883', 15],
    ['1880', 22],
    ['1758', 17],
    ['Other (145)', 493]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Year (n=1030)',
    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);