condition	mean	min	max
4 h after light	5.89012	5.75589	5.96252
8 h after light	5.78881	5.717980000000001	5.90768
12 h after light	5.813316666666666	5.61914	5.9974099999999995
4 h after dark	5.91428	5.7474099999999995	5.99987
8 h after dark	5.818993333333333	5.594930000000001	6.01674
12 h after dark	5.848823333333333	5.773969999999999	5.939769999999999