Children account for most of the increase, census officials said.

Census officials were not available for comment on the programs' success.

Census officials have yet to complete their analysis of last year's count.

Census officials expect that proportion to increase to 50 percent by the year 2000.

Census officials say the numbers are comparable across state lines.

Census officials say the problems are few and relatively insignificant.

Census officials say they do not know how many forms never reached the correct addresses.

Census officials said the median age of the country's population increased to 35.3 years old, the highest it has ever been.

Census officials estimated at the time that there had been an increase of 77% in the preceding 100 years.

But some census officials say the survey might be less accurate than the original count.