prudent to check to see if the figures took the inflationary trends into account to tell you the actual value a figure in one year might represent would actually be less than figures which counted more value in lesser numbers of dollars in the previous decade.
Thus you would be wise to consult a table of Price Indices-- such as the file "price10.txt" released in 1993, before your evaluation of such figures is complete.
The same is true of population figures, which are going up a certain amount every year, in a very similar manner to those price index figures, only not quite as fast, in most cases.
What Started This Report
Very recently, there was a report issued on education, which stated something on the order of people in the United States are receiving 10% more of a certain level of education, than they were a decade before.