These wide-ranging occupations are projected to make up a third of all new jobs between 2008 and 2018, according to the Bureau Labor of Statistics.
20. Carpenters A worker cuts plywood boards for a new home under construction on Oct. 19, 2010, in Cary, N.C. Carpenters are expected to have the 20th largest numerical growth by 2018, adding 165,400 new jobs. The mean annual wage in May 2010 was $43,890, and the position requires long-term on-the-job training. Jim R. Bounds/Bloomberg Buy Photo