Note that daily contractor rates and hourly contractor rates are treated separately. When calculating average contractor rates, daily rates are not derived from quoted hourly rates or vice versa.
| GLSL (OpenGL Shading Language) |
| 3 months to
16 May 2012 | Same period 2011 | Same period 2010 |
| Rank | 576 | - | 535 |
| Rank change year-on-year |
 - |  0 |
|
| Matching contract IT job ads | 3 | 0 | 1 |
| As % of all contract IT jobs located in the UK | 0.005 % | - | 0.002 % |
| As % of the Programming Languages category | 0.015 % | - | 0.005 % |
| Number of daily rates quoted | 0 | 0 | 0 |
| Average daily rate | - | - | - |
| UK excluding London average daily rate | - | - | - |
| Number of hourly rates quoted | 3 | 0 | 0 |
| Average hourly rate | £37.50 | - | - |
| UK excluding London average hourly rate | - | - | - |
|
|
Contract IT job ads with a match in the
Programming Languages category | 20410 | 22925 | 20661 |
| As % of all contract IT jobs located in the UK | 34.48 % | 37.36 % | 37.52 % |
| Number of daily rates quoted | 12126 | 13248 | 10820 |
| Average daily rate | £375 | £413 | £425 |
| Average daily rate % change year-on-year | |
| 90% of contracts offered a daily rate of more than | £250 | £260 | £235 |
| 10% of contracts offered a daily rate of more than | £558 | £600 | £600 |
| UK excluding London average daily rate | £325 | £325 | £300 |
| % change year-on-year | |
| Number of hourly rates quoted | 698 | 916 | 770 |
| Average hourly rate | £34.00 | £35.00 | £30.00 |
| Average hourly rate % change year-on-year | |
| 90% of contracts offered a hourly rate of more than | £17.50 | £19.50 | £16.00 |
| 10% of contracts offered a hourly rate of more than | £45.00 | £45.00 | £42.50 |
| UK excluding London average hourly rate | £34.00 | £35.00 | £30.00 |
| % change year-on-year | |
