condition	mean	min	max
0 h after light	18.6918	18.0849	19.2987
4 h after light	6.538095	5.2335	7.84269
8 h after light	17.577199999999998	16.0931	19.0613
4 h after dark	16.63435	14.0267	19.242
8 h after dark	13.283100000000001	12.9334	13.6328
12 h after dark	12.83005	8.89	16.7701