condition	mean	min	max
4 h after light	7.19544	7.02187	7.374789999999999
8 h after light	7.19458	7.0729999999999995	7.284110000000001
12 h after light	7.422196666666666	7.32114	7.548830000000001
4 h after dark	7.64708	7.537999999999999	7.80088
8 h after dark	7.952780000000001	7.83712	8.100660000000001
12 h after dark	7.997456666666666	7.684019999999999	8.25416