condition	mean	min	max
4 h after light	16.06905	13.0072	19.1309
8 h after light	17.38745	16.8497	17.9252
12 h after light	16.1096	15.8675	16.3517
4 h after dark	16.665499999999998	16.025	17.1004
8 h after dark	16.22833333333333	15.8773	16.7621
12 h after dark	18.5244	17.8113	19.5764