condition mean min max 4 h after light 0.01085955 0.0 0.0217191 8 h after light 0.02371905 0.0 0.0474381 12 h after light 0.03266655 0.0307418 0.0345913 4 h after dark 0.03255163333333334 0.0 0.0976549 8 h after dark 0.014462233333333333 0.0 0.0433867 12 h after dark 0.020221 0.0 0.060663