condition	mean	min	max
4 h after light	8.1793185	8.039321	8.319316
8 h after light	7.4553625	6.819149	8.091576
12 h after light	7.609211999999999	7.568216	7.650208
4 h after dark	9.590174000000001	9.387866	9.792482
8 h after dark	10.1462725	10.075388	10.217157
12 h after dark	7.671887	7.671887	7.671887