condition mean min max 0 h after light 12.976600000000001 10.3443 15.6089 4 h after light 12.5999 12.1779 13.0219 8 h after light 13.211 10.2667 16.1553 4 h after dark 17.2544 15.3299 19.1789 8 h after dark 17.920650000000002 16.3188 19.5225 12 h after dark 17.21415 15.483 18.9453