condition	mean	min	max
0 h after light	17.205199999999998	16.8658	17.5446
4 h after light	9.182604999999999	6.98911	11.3761
8 h after light	6.40818	5.96124	6.85512
4 h after dark	8.545705	8.35446	8.73695
8 h after dark	9.548375	8.62445	10.4723
12 h after dark	16.1953	15.7544	16.6362