What is the average salary of a crane driver?

As of 25th Jan 2008:

In Essex, UK, a salary posted on a recruitment site states £18,500 - £23, 000 for a Class 2 Crane Driver. Holiday pay too.

Job description :

Must have CITB licence, must have class 2 drivers licence. Responsibilities :

Operate the cranes from 8-100 tonnes. Experience required :

All drivers will be experience to drive and operate the cranes.

A Bristol, UK job states £12.50-15.00 / hour plus bonus for CPCS Qualified tower crane driver required for long term.