Selected sections of the iterated SPPs by country of birth show a '0,' 'N,' '-,' or '**,' for estimates and margins of error that are not applicable and should have been represented with an '(X)'. This affects the native iteration and the region, subregion, and country of birth iterations for "Place of Birth, Citizenship Status and Year of Entry" and "World Region of Birth of Foreign Born." Also affected is the total foreign-born iteration for "Place of Birth, Citizenship Status and Year of Entry." For example, in the total foreign-born table, the estimate of natives under "Place of Birth, Citizenship Status and Year of Entry" was reported as '0' with a margin of error of '+/-267' when both measures should have received an '(X).' The corrected SPPs will be released prior to the release of 3-year estimates in December 2008.