condition	mean	min	max
4 h after light	8.200520000000001	8.01114	8.33186
8 h after light	7.815673333333333	7.53585	8.09033
12 h after light	8.3341	8.05755	8.59041
4 h after dark	9.060963333333333	8.910860000000001	9.187380000000001
8 h after dark	9.026746666666666	8.890239999999999	9.246
12 h after dark	9.10911	8.79909	9.29262