condition	mean	min	max
4 h after light	8.199046666666666	8.10872	8.3296
8 h after light	7.182826666666666	7.03378	7.35611
12 h after light	7.677169999999999	7.551589999999999	7.85428
4 h after dark	7.456543333333333	7.3099300000000005	7.542510000000001
8 h after dark	7.775316666666667	7.61685	7.980980000000001
12 h after dark	8.071303333333333	7.89688	8.189689999999999