condition	mean	min	max
4 h after light	6.40572	5.91236	6.89908
8 h after light	5.832075	5.55662	6.10753
12 h after light	7.6181149999999995	7.13937	8.09686
4 h after dark	6.735735	6.63987	6.8316
8 h after dark	7.7862849999999995	7.76206	7.81051
12 h after dark	7.88935	6.94269	8.83601