condition	mean	min	max
4 h after light	8.669885	8.48862	8.85115
8 h after light	5.761775	4.99578	6.52777
12 h after light	6.46	6.12172	6.79828
4 h after dark	8.325255	7.06906	9.58145
8 h after dark	6.734495000000001	6.42283	7.04616
12 h after dark	7.653700000000001	7.24412	8.06328