condition	mean	min	max
4 h after light	7.039946666666666	6.958069999999999	7.09105
8 h after light	6.912616666666667	6.53474	7.2243699999999995
12 h after light	6.90329	6.7079	7.16332
4 h after dark	7.14387	7.011710000000001	7.33038
8 h after dark	7.13853	6.86665	7.4588600000000005
12 h after dark	7.120956666666666	6.849019999999999	7.326960000000001