condition mean min max 4 h after light 0.05498965 0.0247171 0.0852622 8 h after light 0.0261643 0.0253356 0.026993 12 h after light 0.0087463 0.0 0.0174926 4 h after dark 0.017780733333333333 0.0 0.0416754 8 h after dark 0.015102133333333333 0.0 0.0329626 12 h after dark 0.09129803333333333 0.0508638 0.171253