condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.015156 0.0 0.030312 12 h after light 0.0 0.0 0.0 4 h after dark 0.019134133333333334 0.0 0.0311998 8 h after dark 0.0 0.0 0.0 12 h after dark 0.016999766666666666 0.0 0.0380785