condition mean min max 0 h after light 0.0185699 0.0 0.0371398 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.01732495 0.0 0.0346499 2 h after dark 0.017759 0.0 0.035518 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0729486 0.0354172 0.11048