condition mean min max 4 h after light 115.3117145 107.545218 123.078211 8 h after light 143.5923025 100.598178 186.586427 12 h after light 180.395747 177.001288 183.790206 4 h after dark 139.4241935 111.266185 167.582202 8 h after dark 80.5720595 60.000863 101.143256 12 h after dark 123.430839 123.430839 123.430839