condition mean min max 0 h after light 1.16894 1.12615 1.21173 4 h after light 2.31534 2.03993 2.59075 8 h after light 2.79337 2.03796 3.54878 4 h after dark 1.621065 1.52165 1.72048 8 h after dark 1.7955649999999999 1.5199 2.07123 12 h after dark 1.33422 0.91637 1.75207