Median years of tenure with current employer, employed wage and salary workers by occupation, selected years, 2000-06 2000 2002 2004 2006 Management, professional, and related 4.6 4.6 5.0 5.2 Service 2.5 2.4 2.8 2.8 Sales and office 3.1 3.2 3.4 3.4 Natural resources, construction, and maintenance 3.6 3.7 3.7 3.5 Production, transportation, and material moving 3.9 4.3 4.2 4.0 2000 estimates are for February; other years are for January.