condition mean min max 0 h after light 4.616215 3.17624 6.05619 2 h after light 18.31645 15.7119 20.921 4 h after light 12.9727 10.5715 15.3739 8 h after light 2.72051 2.40555 3.03547 12 h after light 3.95261 3.11926 4.78596 2 h after dark 2.73549 2.43344 3.03754 4 h after dark 2.2262399999999998 1.04476 3.40772 8 h after dark 1.6250499999999999 1.3973 1.8528 12 h after dark 6.114520000000001 5.10134 7.1277