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.
| Microsoft Windows NT |
| 3 months to
21 May 2012 | Same period 2011 | Same period 2010 |
| Rank | 464 | 379 | 450 |
| Rank change year-on-year |
 -85 |  +71 |
|
| Matching contract IT job ads | 113 | 209 | 89 |
| As % of all contract IT jobs located in the UK | 0.193 % | 0.347 % | 0.161 % |
| As % of the Operating Systems category | 0.951 % | 1.671 % | 0.890 % |
| Number of daily rates quoted | 59 | 112 | 48 |
| Average daily rate | £300 | £350 | £300 |
| Average daily rate % change year-on-year | |
| 90% of contracts offered a daily rate of more than | £134 | £255 | £141 |
| 10% of contracts offered a daily rate of more than | £450 | £500 | £458 |
| UK excluding London average daily rate | £185 | £325 | £165 |
| % change year-on-year | |
| Number of hourly rates quoted | 10 | 20 | 16 |
| Average hourly rate | £29.00 | £12.75 | £14.00 |
| Average hourly rate % change year-on-year | |
| 90% of contracts offered a hourly rate of more than | £13.85 | £9.90 | £12.00 |
| 10% of contracts offered a hourly rate of more than | £41.60 | £21.15 | £27.50 |
| UK excluding London average hourly rate | £31.00 | £13.00 | £17.50 |
| % change year-on-year | |
|
|
Contract IT job ads with a match in the
Operating Systems category | 11887 | 12510 | 10005 |
| As % of all contract IT jobs located in the UK | 20.34 % | 20.80 % | 18.13 % |
| Number of daily rates quoted | 5933 | 6113 | 4469 |
| Average daily rate | £350 | £375 | £375 |
| Average daily rate % change year-on-year | |
| 90% of contracts offered a daily rate of more than | £200 | £215 | £200 |
| 10% of contracts offered a daily rate of more than | £500 | £550 | £550 |
| UK excluding London average daily rate | £325 | £325 | £300 |
| % change year-on-year | |
| Number of hourly rates quoted | 1185 | 1236 | 1035 |
| Average hourly rate | £17.50 | £17.00 | £16.00 |
| Average hourly rate % change year-on-year | |
| 90% of contracts offered a hourly rate of more than | £11.21 | £11.00 | £10.50 |
| 10% of contracts offered a hourly rate of more than | £40.00 | £37.50 | £37.50 |
| UK excluding London average hourly rate | £17.00 | £16.50 | £15.50 |
| % change year-on-year | |
