1DXX19701DXX19711DXX19731DXX19741DXX19751DXX19761DXX19771DXX19781DXX19801DXX19811DXX19821DXX19831DXX19851DXX19861DXX19871DXX19911DXX19921DXX19931DXX19951DXX1996