condition mean min max 3 h after light 0.052986 0.0 0.158958 6 h after light 0.0 0.0 0.0 9 h after light 0.020158466666666666 0.0 0.0604754 12 h after light 0.029408433333333334 0.0 0.0882253 3 h after dark 0.057136433333333334 0.0 0.0973886 6 h after dark 0.0 0.0 0.0 9 h after dark 0.039603 0.0 0.118809 12 h after dark 0.08972406666666667 0.0 0.192686