All you really need to know about the latest Congressional Budget Office figures is contained in the nearby chart. The darker bars at the bottom measure the annual budget deficit as a share of the U.S. economy, showing that it will steadily decline throughout the rest of this decade. From 3.6% of GDP in the 2004 fiscal year, the deficit will fall steadily to an insignificant 0.5% of GDP in 2011, assuming continued economic growth.