condition mean min max 4 h after light 66.0256925 42.724743 89.326642 8 h after light 68.047294 45.81291 90.281678 12 h after light 107.1476065 91.328187 122.967026 4 h after dark 102.0955715 89.947305 114.243838 8 h after dark 83.4288975 58.762058 108.095737 12 h after dark 121.001288 121.001288 121.001288