condition	mean	min	max
4 h after light	25.9602315	22.142799	29.777664
8 h after light	18.818129	16.941821	20.694437
12 h after light	15.8736705	15.557261	16.19008
4 h after dark	16.251927	14.996691	17.507163
8 h after dark	15.3168045	14.513807	16.119802
12 h after dark	18.15445	18.15445	18.15445