f males over 14 divorced)</p></dd>
  <dt>	MAyy	</dt><dd><p>Median age for the years yy: 1960, 1970, 1980, 1990</p></dd>
  <dt>	POLyy	</dt><dd><p>Log of population for the years yy: 1960, 1970, 1980, 1990</p></dd>
  <dt>	DNLyy	</dt><dd><p>Log of population density for the years yy: 1960, 1970, 1980, 1990</p></dd>
  <dt>	MFILyy	</dt><dd><p>Log of median family income for the years yy: 1960, 1970, 1980, 1990</p></dd>
  <dt>	FPyy	</dt><dd><p>Percentage of families below poverty for the years yy: 1960, 1970, 198