condition	mean	min	max
4 h after light	8.2667925	8.025614	8.507971
8 h after light	8.470405	8.432839	8.507971
12 h after light	8.6143345	7.839889	9.38878
4 h after dark	9.5561175	9.389853	9.722382
8 h after dark	8.6068095	8.206109	9.00751
12 h after dark	8.446746	8.446746	8.446746