condition mean min max 4 h after light 139.299432 131.167888 147.430976 8 h after light 141.96507300000002 132.905413 151.024733 12 h after light 164.5405005 151.024733 178.056268 4 h after dark 158.60735 151.663321 165.551379 8 h after dark 147.92503349999998 138.539749 157.310318 12 h after dark 188.509061 188.509061 188.509061