The annual and hourly salary statistics of grinding and polishing workers in Rockford, Illinois are shown in Table 1 and Table 2, respectively. The wage data of grinding and polishing workers in Rockford is based on the national compensation survey conducted by the U.S. Bureau of Labor Statistics in 2017 and published in April 2018 [1].
| Percentile Bracket | Average Annual Salary |
|---|---|
| 10th Percentile Wage | $20,470 |
| 25th Percentile Wage | $23,370 |
| 50th Percentile Wage | $29,760 |
| 75th Percentile Wage | $36,710 |
| 90th Percentile Wage | $40,510 |
Table 1 shows the average annual salary for grinding and polishing workers in Rockford, Illinois in 5 percentile scales. The average annual salary for the 90th percentile (the top 10 percent of the highest paid) is $40,510. The median (50th percentile) annual salary is $29,760. The average annual salary for the bottom 10 percent earners is $20,470.
The table and chart below show the trend of the median salary of grinding and polishing workers from 2012 to 2017.
| Year | Median Salary | Yearly Growth | 5-Year Growth |
|---|---|---|---|
| 2017 | $29,760 | -3.29% | -16.23% |
| 2016 | $30,740 | -2.57% | - |
| 2015 | $31,530 | -16.18% | - |
| 2014 | $36,630 | -2.40% | - |
| 2013 | $37,510 | 7.78% | - |
| 2012 | $34,590 | - | - |
From Table 3 we note that the median annual salary of $29,760 in Rockford is in the middle of salary range for grinding and polishing workers in state of Illinois. In comparison, the annual salary of grinding and polishing workers in Rockford is 4.9 percent (4.9%) lower than that in the highest paying Chicago-Joliet-Naperville (IL Metropolitan Division) and 23.7 percent (23.7%) higher than that in the lowest paying Champaign-Urbana.