The Department of State (DOS) has determined the worldwide employment-based preference numerical limit for fiscal year (FY) 2011: 140,000. The per-country limit is fixed at 7 percent of the employment annual limit. For FY 2011, the per-country limit is 25,620. The dependent area annual limit is 2 percent, or 7,320.
The worldwide family-sponsored preference limit for FY 2011 is 226,000. See the DOS's Visa Bulletin for August 2011 for details here.