Employment and mean hourly wages, selected occupations, May 2006 Mean hourly wage Employment Retail salespersons 11.51 4,374,230 Cashiers 8.62 3,479,390 Office clerks, general 12.12 3,026,710 Combined food preparation and serving workers, including fast food 7.66 2,461,890 Registered nurses 28.71 2,417,150 Laborers and freight, stock, and material movers, hand 11.08 2,372,130 Waiters and waitresses 8.27 2,312,930 Customer service representatives 14.61 2,147,770 Janitors and cleaners, except maids and housekeeping cleaners 10.45 2,124,860