condition	mean	min	max
4 h after light	7.626804999999999	7.38796	7.86565
8 h after light	6.93485	6.86771	7.00199
12 h after light	7.67343	7.09145	8.25541
4 h after dark	10.872150000000001	10.2703	11.474
8 h after dark	14.39875	14.1494	14.6481
12 h after dark	11.653649999999999	10.9739	12.3334