Estimated number of H-1B workers employed in the United States, 2013
| Number of workers | |
|---|---|
| H-1B petition approvals | |
| H-1B petitions approved for initial and continuing employment, 2011–2013 | 818,995 |
| Subtractions | |
| H-1B one-year extensions, 2012–2013 | -52,184 |
| H-1B approved petitions for changing employers, 2012–2013 | -80,690 |
| H-1B adjustment to LPR status via employment-based preference, 2011–2013 | -139,303 |
| Emigration to country of origin or third country (10 percent) | -81,899 |
| Estimated duplicate petitions approved by USCIS for initial employment (1 percent) | -3,716 |
| Estimated deaths (55 per 100,000) | -454 |
| Total | 460,749 |
Note: LPR refers to lawful permanent resident. All references to a particular year should be understood to mean the U.S. government’s fiscal year (October 1–September 30).
Sources: USCIS 2014a; USCIS 2012b; USCIS 2013d; USCIS 2014b; U.S. DHS 2015; adjustment of status data from Zamora 2016; mortality rate calculated from Centers for Disease Control data at wonder.cdc.gov (CDC 2014)