condition	mean	min	max
4 h after light	8.360385	7.14104	9.57973
8 h after light	5.84346	5.67468	6.01224
12 h after light	6.8666	6.67521	7.05799
4 h after dark	15.5636	14.9439	16.1833
8 h after dark	13.34765	13.054	13.6413
12 h after dark	13.120000000000001	12.5427	13.6973