condition	mean	min	max
4 h after light	20.488	18.4475	22.5285
8 h after light	14.0945	12.0502	16.1388
12 h after light	14.239600000000001	11.2543	17.2249
4 h after dark	11.042895	9.97899	12.1068
8 h after dark	9.39148	9.20838	9.57458
12 h after dark	13.575700000000001	11.4723	15.6791