      return data.parsed.y + ' tests'
                        }
                    },
                },
            },
        }

        const durationChart = new Chart(durationChartCtx, {
            type: 'bar',
            data: durationData,
            options: durationOptions
        });

        function durationClickHandler(click) {
            const points = durationChart.getElementsAtEventForMode(click, 'nearest', {intersect: true}, true);
            if (points.length) {
                const 