condition mean min max 2 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 10 h after light 0.0866055 0.0 0.519633 14 h after light 0.0905035 0.0 0.543021 18 h after light 0.0 0.0 0.0 2 h after dark 0.2521953333333333 0.0 0.991277