condition mean min max 2 h after light 3.8384033333333334 2.85536 4.81226 6 h after light 7.466728333333333 2.68642 14.1339 10 h after light 4.80375 1.89864 9.41282 14 h after light 4.256818333333333 2.86622 6.59047 18 h after light 4.430995 3.50866 6.10896 2 h after dark 3.39769 1.5712 5.03101