condition	mean	min	max
0 h after light	13.29675	12.1002	14.4933
4 h after light	20.96705	19.9882	21.9459
8 h after light	8.071404999999999	7.90161	8.2412
4 h after dark	7.307295	6.53703	8.07756
8 h after dark	12.400549999999999	11.1598	13.6413
12 h after dark	13.150400000000001	11.7142	14.5866