condition	mean	min	max
4 h after light	7.372373333333334	7.0857	7.712560000000001
8 h after light	7.4316699999999996	6.88922	7.76032
12 h after light	7.529463333333333	7.349939999999999	7.64831
4 h after dark	7.65241	7.24759	7.894369999999999
8 h after dark	7.573283333333333	7.18575	7.781060000000001
12 h after dark	7.01273	6.751539999999999	7.417860000000001