condition mean min max 0 h after light 118.4905 118.052 118.929 4 h after light 73.4342 68.4812 78.3872 8 h after light 56.85225 54.0 59.7045 4 h after dark 17.8296 14.0338 21.6254 8 h after dark 16.1498 15.055 17.2446 12 h after dark 82.2916 49.3442 115.239