The following table is data for wage levels of people living in Glasgow.
| 2011 | 2012 | 2011-12 | |
| 25 percentile | £17,879 | £17,994 | 0.6% |
| Median | £24,447 | £24,447 | 0.0% |
| 75 percentile | £34,190 | £33,988 | -0.6% |
Remarkably, the median annual wage level in Glasgow remained the same between 2011 and 2012. The data is provided as a list ranked by amount; and the median is the value exactly in the middle of the ranking. The value for the 25 percentile and 75 percentile has also been given, showing amounts for (relatively) low pay and (relatively) high pay respectively.
For people working in Glasgow, regardless of where they live, the details are as follows.
| 2011 | 2012 | 2011-12 | |
| 25 percentile | £18,153 | £19,324 | 6.5% |
| Median | £25,269 | £26,201 | 3.7% |
| 75 percentile | £35,264 | £36,359 | 3.1% |
Commuting patterns explain the difference between residence-based and workplace-based income levels, and this has been a long standing feature of the labour market in and around Glasgow. Less clear is the explanation why workplace-based income rates increased between 2011 and 2012, while the residence-based rates remained the same.