condition mean min max 0 h after light 55.36575 54.6907 56.0408 4 h after light 172.052 122.23 221.874 8 h after light 53.01825 49.3061 56.7304 4 h after dark 20.1054 15.0292 25.1816 8 h after dark 47.04205 46.4356 47.6485 12 h after dark 66.8532 63.6066 70.0998