condition	mean	min	max
4 h after light	15.95325	15.1161	16.7904
8 h after light	18.67935	17.3746	19.9841
12 h after light	25.741799999999998	24.6796	26.804
4 h after dark	18.821150000000003	18.8122	18.8301
8 h after dark	17.6575	16.5858	18.7292
12 h after dark	18.34185	17.8215	18.8622