condition mean min max 0 h after light 17.5557 16.5977 18.5137 2 h after light 8.397755 8.38173 8.41378 4 h after light 8.01561 7.97146 8.05976 8 h after light 7.8984000000000005 6.2644 9.5324 12 h after light 10.885950000000001 10.5108 11.2611 2 h after dark 13.261199999999999 12.3856 14.1368 4 h after dark 15.6607 15.6251 15.6963 8 h after dark 22.02055 21.4738 22.5673 12 h after dark 21.3631 20.5975 22.1287