condition	mean	min	max
4 h after light	9.032245	7.66239	10.4021
8 h after light	14.40305	14.2906	14.5155
12 h after light	15.626000000000001	15.3016	15.9504
4 h after dark	17.7886	17.5257	18.0262
8 h after dark	13.035766666666667	10.8587	14.6654
12 h after dark	10.11254	9.50942	10.5047