condition	mean	min	max
0 h after light	19.69755	19.6959	19.6992
4 h after light	13.90635	13.3115	14.5012
8 h after light	10.66515	10.4973	10.833
4 h after dark	15.632150000000001	14.8823	16.382
8 h after dark	18.966250000000002	17.7085	20.224
12 h after dark	18.354149999999997	17.6893	19.019