condition	mean	min	max
4 h after light	8.738386666666667	8.674660000000001	8.77635
8 h after light	8.563013333333332	8.411719999999999	8.65339
12 h after light	8.0402	7.975110000000001	8.10281
4 h after dark	7.73735	7.66535	7.87027
8 h after dark	7.762816666666666	7.677039999999999	7.871639999999999
12 h after dark	7.597193333333333	7.42669	7.852689999999999