condition	mean	min	max
4 h after light	7.8507549999999995	7.63868	8.06283
8 h after light	7.45195	7.35171	7.55219
12 h after light	9.582809999999998	9.32857	9.83705
4 h after dark	14.421600000000002	12.3939	16.4493
8 h after dark	11.945	11.4867	12.4033
12 h after dark	9.403794999999999	8.88065	9.92694