condition	mean	min	max
4 h after light	7.738663333333333	7.45822	7.92398
8 h after light	7.731393333333334	7.59456	7.865810000000001
12 h after light	7.423916666666667	7.060230000000001	7.72364
4 h after dark	7.56328	7.312689999999999	7.8832
8 h after dark	7.686063333333333	7.52798	7.8502
12 h after dark	7.68664	7.48995	7.78959