condition	mean	min	max
4 h after light	8.382433333333333	8.03241	8.57422
8 h after light	9.295993333333334	9.192060000000001	9.4415
12 h after light	9.616843333333332	9.528139999999999	9.73894
4 h after dark	9.17287	8.95008	9.507719999999999
8 h after dark	8.6693	8.21354	9.11076
12 h after dark	8.09193	7.79973	8.41986