condition	mean	min	max
4 h after light	8.195219999999999	7.36213	9.02831
8 h after light	6.190765	5.70782	6.67371
12 h after light	5.85755	5.67338	6.04172
4 h after dark	8.699913333333333	8.16446	9.30568
8 h after dark	8.640133333333333	8.59918	8.68019
12 h after dark	10.3636	9.90028	11.2765