condition mean min max 0 h after light 12.586425 7.98365 17.1892 2 h after light 8.480565 7.99784 8.96329 4 h after light 5.5639199999999995 4.86719 6.26065 8 h after light 10.424869999999999 9.85644 10.9933 12 h after light 14.20335 13.9736 14.4331 2 h after dark 17.2623 13.7024 20.8222 4 h after dark 17.7218 17.3929 18.0507 8 h after dark 20.526 17.9595 23.0925 12 h after dark 17.2101 14.2035 20.2167