That figure was created using survey results from "all sectors - development, publishing, retail, PR & marketing, services, technology and business development," according to MCV. Ten percent of respondents were women, which is reportedly in-scale with their overall presence in the British gaming industry.
The study's average salary figure is a median average rather than a mean average, we should note, and does not include "the group of very senior, and very well paid, execs" that also participated in the survey. Including their data, the average salary is £35,790. If you include the 378 non-British respondents, the average rose to £34,263, indicating that junior-level employees may be earning more outside of the UK.
The survey also showed a disparity between the average salaries of men and women, with industry women making £1.35 an hour less than their male counterparts. This is disproportionate to MCV's global findings, which show that women in the games industry earn more than men on average, albeit only by a few hundred pounds. Here is your reward for making it all the way through a facts-oriented article about salaries and averages.