condition	mean	min	max
0 h after light	26.2887	26.1524	26.425
4 h after light	9.733675	8.85845	10.6089
8 h after light	8.565125	7.78073	9.34952
4 h after dark	11.7258	10.7926	12.659
8 h after dark	15.36645	14.6513	16.0816
12 h after dark	21.7393	17.2036	26.275