condition	mean	min	max
0 h after light	17.6329	15.6969	19.5689
4 h after light	10.359955	9.95941	10.7605
8 h after light	13.43655	12.4594	14.4137
4 h after dark	15.54225	14.5686	16.5159
8 h after dark	15.307500000000001	13.8777	16.7373
12 h after dark	16.67225	15.3151	18.0294