condition	mean	min	max
4 h after light	8.10906	6.2835	9.93462
8 h after light	5.745744999999999	5.16984	6.32165
12 h after light	4.984780000000001	4.44113	5.52843
4 h after dark	3.99638	3.5138	4.47896
8 h after dark	3.60536	3.55962	3.6511
12 h after dark	3.3073	3.24094	3.37366