condition	mean	min	max
0 h after light	6.421435000000001	6.2233	6.61957
4 h after light	7.536010000000001	6.53732	8.5347
8 h after light	15.0031	13.684	16.3222
4 h after dark	12.9272	12.5518	13.3026
8 h after dark	8.261735	7.62275	8.90072
12 h after dark	6.64703	5.86976	7.4243