condition mean min max 4 h after light 63.5084 58.5008 68.516 8 h after light 41.1726 39.3826 42.9626 12 h after light 38.9874 37.0082 40.9666 4 h after dark 45.7064 43.5698 47.843 8 h after dark 66.6385 63.7873 69.4897 12 h after dark 74.33455000000001 73.8869 74.7822