condition mean min max 3 h after light 10.856656666666666 8.37637 13.7573 6 h after light 4.688463333333333 3.64714 5.50716 9 h after light 5.07819 2.89355 8.3545 12 h after light 7.383275 3.22096 17.9985 3 h after dark 5.64045 4.5789 6.58248 6 h after dark 7.27682 5.93382 9.62328 9 h after dark 11.477673333333334 9.98902 12.2499 12 h after dark 17.07055 15.1628 18.9783