condition mean min max 0 h after light 2.792995 2.79208 2.79391 4 h after light 2.132845 1.48963 2.77606 8 h after light 1.976205 1.48819 2.46422 4 h after dark 2.54415 2.02081 3.06749 8 h after dark 2.663175 2.39976 2.92659 12 h after dark 2.59138 2.37926 2.8035