display chart_display refresh:every(10#cycles) {
    chart "Objectifs des reésidents" type: series size: {1, 0.5} position: {0, 0} {
        data "Travailler" value: resident count (each.objectif="travailler") color: #magenta ;
        data "Se reposer" value: resident count (each.objectif="repos") color: #blue ;
}