A pressure measurement can further be described by the type of measurement being performed. There are three types of pressure measurements: absolute, gauge, and differential. Absolute pressure measurement is measured relative to a vacuum (Figure 2).
For example, the median tenure of workers ages 55 to 64 (10.1 years) was more than three times that of workers ages 25 to 34 years (2.8 years). Also, a larger proportion of older workers than younger workers had 10 years or more of tenure.
Fence Erectors. Employment and wage data by occupation are based on the Occupational Employment Statistics (OES) survey, which collects information from approximately 52,000 businesses. Data were collected in 2011, 2012, 2013 and 2014 and then updated to the first quarter of 2015 by making cost-of-living adjustments. These estimated wages reflect a minimum wage of $8.75 per hour, which was the minimum wage in effect at the time the estimates were prepared.