condition	mean	min	max
4 h after light	8.974129999999999	8.712434	9.235826
8 h after light	8.6838975	8.573861	8.793934
12 h after light	8.508686	8.196653	8.820719
4 h after dark	8.031393000000001	8.030345	8.032441
8 h after dark	9.2511595	8.573861	9.928458
12 h after dark	7.721254	7.721254	7.721254