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.
The numbers are stark: in 2012, six out of 10 workers aged 15-29 lacked stable employment and earned below-average wages, according to the International Labour Organization. The global youth employment rate has reached 13.1% â almost three times that of adults.