Average share of total U.S. federal spending and total federal public investment, by major budget category, 2010–2012
| Federal spending | Federal public investment | |
|---|---|---|
| Nondefense discretionary | 21.0% | 55.4% |
| Defense | 20.4% | 39.3% |
| Mandatory | 58.7% | 5.3% |
Source: Author's analysis of unpublished data from the Office of Management and Budget (OMB)