<page_title> Houston </page_title> <section_title> Race and ethnicity </section_title> <table> <cell> 25.6% <col_header> 2010 </col_header> </cell> <cell> 30.8% <col_header> 2000 </col_header> </cell> <cell> 40.6% <col_header> 1990 </col_header> </cell> <cell> 62.4% <col_header> 1970 </col_header> </cell> </table>
The proportion of non-Hispanic whites in Houston has decreased since 1970, which was then 62.4%.