condition	mean	min	max
4 h after light	3.18113	2.68186	3.6804
8 h after light	6.9856300000000005	6.63929	7.33197
12 h after light	6.366265	6.3025	6.43003
4 h after dark	6.67171	6.23118	7.11224
8 h after dark	4.516975	4.3233	4.71065
12 h after dark	4.772724999999999	4.31863	5.22682