condition	mean	min	max
4 h after light	7.619294999999999	6.86898	8.36961
8 h after light	5.8989899999999995	5.50456	6.29342
12 h after light	5.527445	5.35182	5.70307
4 h after dark	9.125566666666668	8.81169	9.75158
8 h after dark	6.78767	6.02626	7.46877
12 h after dark	5.801233333333333	4.95817	6.23198