condition	mean	min	max
0 h after light	19.10765	17.0014	21.2139
4 h after light	15.53615	15.0957	15.9766
8 h after light	17.4707	15.9611	18.9803
4 h after dark	32.3144	31.1615	33.4673
8 h after dark	30.910899999999998	30.1586	31.6632
12 h after dark	20.21575	19.5274	20.9041