condition mean min max 0 h after light 16.40475 16.0765 16.733 2 h after light 7.15975 6.94029 7.37921 4 h after light 5.989855 5.57211 6.4076 8 h after light 4.898035 4.86157 4.9345 12 h after light 6.518705000000001 6.24448 6.79293 2 h after dark 7.552815 7.05875 8.04688 4 h after dark 12.716249999999999 11.5176 13.9149 8 h after dark 18.79475 18.2085 19.381 12 h after dark 17.2209 16.023 18.4188