function drawChartTreatmentsPerYear() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['2023', 5912],
    ['2022', 5545],
    ['2021', 9691],
    ['2020', 4833],
    ['2019', 4824],
    ['2018', 4790],
    ['2017', 4240],
    ['2016', 6951],
    ['2015', 4944],
    ['2014', 4006],
    ['2013', 6746],
    ['2012', 3882],
    ['2011', 3573],
    ['2010', 3975],
    ['2009', 3031],
    ['Other (235)', 19791]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Year (n=96734)',
    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);