condition	mean	min	max
0 h after light	12.93315	12.3249	13.5414
4 h after light	16.97485	16.2819	17.6678
8 h after light	18.90635	17.8085	20.0042
4 h after dark	15.2787	13.786	16.7714
8 h after dark	12.9862	12.5234	13.449
12 h after dark	14.55815	14.4386	14.6777