condition mean min max 4 h after light 49.510637 21.96694 77.054334 8 h after light 67.7849005 60.335956 75.233845 12 h after light 61.4786175 44.339664 78.617571 4 h after dark 39.9098075 32.205408 47.614207 8 h after dark 24.972757 24.776108 25.169406 12 h after dark 24.131498 24.131498 24.131498