Use SHP file attribute TRBG_STR instead of OBJECTID as the census block group id.
Use SHP file attribute TRBG_STR instead of OBJECTID as the census block group id.

critzo/piecewise,critzo/piecewise,opentechinstitute/piecewise,critzo/piecewise,opentechinstitute/piecewise,critzo/piecewise,opentechinstitute/piecewise,opentechinstitute/piecewise