condition	mean	min	max
0 h after light	23.344900000000003	23.1311	23.5587
4 h after light	9.767275	9.07635	10.4582
8 h after light	4.853675	4.69633	5.01102
4 h after dark	14.2137	13.2325	15.1949
8 h after dark	17.47065	16.4717	18.4696
12 h after dark	20.50115	19.4651	21.5372