condition	mean	min	max
4 h after light	9.569475	8.17295	10.966
8 h after light	12.845099999999999	12.3508	13.3394
12 h after light	13.8617	13.6407	14.0827
4 h after dark	17.4052	16.8399	18.3166
8 h after dark	18.624366666666667	16.1336	20.0982
12 h after dark	11.808666666666667	10.4853	13.8646