condition	mean	min	max
0 h after light	14.9475	14.3637	15.5313
4 h after light	17.52355	14.8362	20.2109
8 h after light	18.689999999999998	15.564	21.816
4 h after dark	14.81852	9.40464	20.2324
8 h after dark	16.01095	15.7183	16.3036
12 h after dark	19.259050000000002	18.7092	19.8089