condition	mean	min	max
0 h after light	9.82277	9.11694	10.5286
4 h after light	6.55485	5.7741	7.3356
8 h after light	19.37525	19.2576	19.4929
4 h after dark	15.137699999999999	13.4841	16.7913
8 h after dark	11.8305	11.8062	11.8548
12 h after dark	8.371495	7.91678	8.82621