condition	mean	min	max
0 h after light	18.0412	17.1104	18.972
4 h after light	6.74071	5.57228	7.90914
8 h after light	9.350954999999999	8.40821	10.2937
4 h after dark	17.94785	17.7721	18.1236
8 h after dark	18.4333	16.3554	20.5112
12 h after dark	15.604800000000001	14.8438	16.3658