condition mean min max 4 h after light 215.5739875 203.055844 228.092131 8 h after light 238.2169635 232.798138 243.635789 12 h after light 210.08551 194.814401 225.356619 4 h after dark 199.669267 190.029554 209.30898 8 h after dark 192.46269 177.847169 207.078211 12 h after dark 139.462826 139.462826 139.462826