condition mean min max 4 h after light 166.2 166.2 166.2 8 h after light 164.1 127.2 201.0 12 h after light 135.9 102.0 169.8 4 h after dark 166.85 153.2 180.5 8 h after dark 224.0 200.1 247.9 12 h after dark 198.85000000000002 172.4 225.3