condition	mean	min	max
4 h after light	8.09273	7.9542399999999995	8.18034
8 h after light	8.232733333333334	8.11806	8.33038
12 h after light	8.33882	8.1705	8.4407
4 h after dark	8.351916666666668	8.18438	8.46212
8 h after dark	8.095856666666666	8.009689999999999	8.20407
12 h after dark	7.940793333333334	7.9002300000000005	7.99056