condition	mean	min	max
0 h after light	19.65565	18.1653	21.146
4 h after light	13.17905	12.8885	13.4696
8 h after light	7.201835	6.13702	8.26665
4 h after dark	11.24013	7.61046	14.8698
8 h after dark	15.580549999999999	14.6822	16.4789
12 h after dark	16.04195	14.0351	18.0488