This is an American study, but I suspect that you would find a similar picture here - the Computer Science department at Warwick told me that the proportion of female students has been in decline since the 80s. http://www.npr.org/sections/money/2014/10/21/357629765/when-women-stopped-coding The reason here might be different, though. In the 80s, programming was taught in schools - there was a fair proportion of girls in my O level Computer Studies class. In the 90s, although it was in the ICT National Curriculum, programming all-but-disappeared from schools, making programming a niche interest that (mainly boy) teenagers did at home. My hope (and, indeed, expectation) is that introducing Computing to the National Curriculum will reverse this trend. What do you think?