In reply to Ryan Hellyer.

Now more than a decade old, this gender-comparison survey of college students' computing interests, will remain a benchmark. There will be others, more-recent.

The annual UCLA survey polled over 400,000 students at 717 colleges and universities nationwide. Data from 269,413 of those students was statistically adjusted to represent the 1.1 million freshmen entering four-year higher-education institutions.
...

Only 1.8 percent of women, compared to 9.3 percent of the men surveyed, said they planned to enter computer programming as a career -- the largest gap in the survey's history.

"This is an area where the gender gap has done nothing but grow larger," said Linda Sax, the survey's director.

[My favorite addendum to this disturbing topic, is that historic evidence supports that the innate ability of females 'is there', and that therefore, the fundamental problem today is 'cultural'.

Specifically, before digital electronics, "computers" where widespread & in heavy use ... but a computer was then a human person. Most such professional computers - and the best, most desired & sought after - were females. When the first rounds of programmer-training began, female computers were selected. For 'historic reasons', this initially-promising move was derailed, and males became established as "appropriate" programmers, instead.]

It's a mistake to minimize the gender-imbalance in computing fields.