condition	mean	min	max
0 h after light	22.31155	22.0961	22.527
4 h after light	17.51135	14.6844	20.3383
8 h after light	14.8742	14.4454	15.303
4 h after dark	20.2065	16.5112	23.9018
8 h after dark	21.6348	20.9068	22.3628
12 h after dark	21.7223	19.5215	23.9231