This doesn't tell you how many women are employed as programmers because its one school its one course and further it doesn't account for people that choose not to stay in the profession or whom started out in a practical manner rather than in school.

The National Girls Collaborative Project said that woman received 57% of all bachelors degrees but only 18% of computer science degrees http://ngcproject.org/statistics further some sources say the ultimate percentage of female software developers is even lower, as low as 8%.

Women are succeeding at school but they aren't going into computer science and a greater percentage of them are leaving.

Your belief that there are just as many female developers as men is utterly unfounded and without merit.

The fact that you interact with a lot of female developers doesn't change the actual numbers and the plural of anecdote isn't data.

We have one side complaining that we need to erase the gender gap in computer science, another scoffing and saying girls just don't like computers. It probably doesn't help either case to pretend that there is no gap.