condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.019834 0.0 0.059502 9 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 3 h after dark 0.0 0.0 0.0 6 h after dark 0.016269666666666665 0.0 0.048809 9 h after dark 0.018376533333333334 0.0 0.0551296 12 h after dark 0.017944033333333335 0.0 0.0538321