condition	mean	min	max
4 h after light	8.625473333333334	8.373660000000001	8.87878
8 h after light	8.014076666666668	7.75467	8.19918
12 h after light	8.187370000000001	7.953060000000001	8.308710000000001
4 h after dark	7.542196666666666	7.4637199999999995	7.58339
8 h after dark	8.10261	7.65132	8.3283
12 h after dark	8.80796	8.698030000000001	9.00592