condition	mean	min	max
4 h after light	6.858665	6.15345	7.56388
8 h after light	9.815915	8.52003	11.1118
12 h after light	12.61375	12.2687	12.9588
4 h after dark	23.2276	22.2809	24.1743
8 h after dark	18.2793	18.2678	18.2908
12 h after dark	13.8087	13.0	14.6174