condition	mean	min	max
4 h after light	9.42132	8.36544	10.4772
8 h after light	6.78556	6.37272	7.1984
12 h after light	10.84345	10.6731	11.0138
4 h after dark	16.238333333333333	15.167	16.8669
8 h after dark	18.9862	18.4362	20.0779
12 h after dark	19.377100000000002	17.5863	20.6091