condition	mean	min	max
4 h after light	7.33437	7.29422	7.407439999999999
8 h after light	7.397793333333333	7.233460000000001	7.50928
12 h after light	7.40965	7.36188	7.448110000000001
4 h after dark	7.17868	6.83535	7.36487
8 h after dark	7.22841	6.9717899999999995	7.5092300000000005
12 h after dark	7.228003333333334	7.15425	7.37277