condition mean min max 3 h after light 0.09974233333333334 0.0 0.299227 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.074546 0.0 0.298184 3 h after dark 0.10748533333333334 0.0 0.322456 6 h after dark 0.0 0.0 0.0 9 h after dark 0.14025633333333334 0.0 0.420769 12 h after dark 0.0 0.0 0.0