condition mean min max 4 h after light 16.5 16.5 16.5 8 h after light 108.35 12.1 204.6 12 h after light 1107.3 216.2 1998.4 4 h after dark 1036.35 166.2 1906.5 8 h after dark 130.2 76.8 183.6 12 h after dark 35.8 15.6 56.0