condition	mean	min	max
4 h after light	15.512599999999999	14.9519	16.0733
8 h after light	9.878354999999999	9.44721	10.3095
12 h after light	12.5604	11.8669	13.2539
4 h after dark	18.9693	17.6664	20.2722
8 h after dark	19.423299999999998	16.9806	21.866
12 h after dark	20.2798	19.1463	21.4133