For example in figure 4.1, although federal government saving increased as a share of GDP by 5.5 percentage points from 1990 to 2000, net national saving increased by only 1.1 percentage points because private saving as a share of GDP decreased by 4.9 percentage points over the same period.
Overall savings increased by 5.5% during 1990 through 2000 but this does not hold up when examining private savings which lost ground during the same period.