condition mean min max 3 h after light 3.20976 1.81749 5.13463 6 h after light 6.46987 5.5567 7.23036 9 h after light 5.119 3.33506 6.90181 12 h after light 6.8390425 2.83172 18.5229 3 h after dark 13.696203333333333 9.92411 16.6452 6 h after dark 10.888383333333334 8.97285 12.3844 9 h after dark 10.234323333333334 9.26575 11.7162 12 h after dark 28.6714 28.5747 28.7681