condition	mean	min	max
4 h after light	7.982489999999999	7.910989999999999	8.11811
8 h after light	7.940723333333334	7.884469999999999	7.97505
12 h after light	8.1032	7.99614	8.165389999999999
4 h after dark	8.093869999999999	7.9111199999999995	8.25273
8 h after dark	8.136736666666668	8.01483	8.28115
12 h after dark	8.26539	8.20001	8.34651