condition	mean	min	max
0 h after light	21.0967	20.4892	21.7042
4 h after light	17.648850000000003	16.3258	18.9719
8 h after light	10.122875	9.51635	10.7294
4 h after dark	6.339065	5.77339	6.90474
8 h after dark	16.5607	15.7521	17.3693
12 h after dark	20.397550000000003	17.8212	22.9739