condition	mean	min	max
4 h after light	9.05176	8.875517	9.228003
8 h after light	8.5812005	8.318029	8.844372
12 h after light	9.2037675	8.61449	9.793045
4 h after dark	8.9781475	8.532579	9.423716
8 h after dark	8.656651	8.480328	8.832974
12 h after dark	8.815425	8.815425	8.815425