condition	mean	min	max
0 h after light	15.384699999999999	15.2511	15.5183
4 h after light	9.619019999999999	8.62054	10.6175
8 h after light	7.828215	7.55914	8.09729
4 h after dark	12.63851	8.82242	16.4546
8 h after dark	20.5138	20.25	20.7776
12 h after dark	14.50095	13.6118	15.3901