Oh, you should fix wikipedia then: http://en.wikipedia.org/wiki/Bill_Clinton

which is based on this: http://www.cbo.gov/budget/data/historical.pdf

as confirmed by factcheck.org: http://www.factcheck.org/askfactcheck/during_the_clinton_adm...

Actually this was (from the site you linked) show positive saving too (though I am not sure if it's relevant): http://research.stlouisfed.org/fred2/graph/?chart_type=line&...

Could it be because you sent data for gross change in debt? Or maybe because those numbers include the extra interest rate paid by the debt (i.e. the government started saving, but the debt was so huge that the extra interests from the previous year compensated for it?).

Dunno, I am just trying to put the two pictures together.