condition mean min max 0 h after light 97.1087 96.3872 97.8302 4 h after light 8.77553 5.91216 11.6389 8 h after light 4.461615 4.3746 4.54863 4 h after dark 14.7579 14.2405 15.2753 8 h after dark 21.424950000000003 17.6857 25.1642 12 h after dark 46.9716 39.6238 54.3194