condition	mean	min	max
0 h after light	15.759450000000001	14.441	17.0779
4 h after light	11.438600000000001	10.3846	12.4926
8 h after light	7.836805	7.44878	8.22483
4 h after dark	13.05895	11.6327	14.4852
8 h after dark	15.80275	15.2824	16.3231
12 h after dark	15.6085	14.6205	16.5965