condition	mean	min	max
0 h after light	7.933845	7.3488	8.51889
4 h after light	14.07515	11.9352	16.2151
8 h after light	17.13065	13.128	21.1333
4 h after dark	16.47515	16.4494	16.5009
8 h after dark	17.47585	14.0348	20.9169
12 h after dark	7.62617	5.08084	10.1715