Participation of Women in Free/Libre/Open Source Software. What is the current status and how much has changed in the last 10 years?by Gregorio Robles, Laura Arjona Reina, Jesús M. González-Barahona and Santiago Dueñas Domı́nguez.
Associate editor: Stefano Zacchiroli (@zacchiro)
It is well known that women are generally underrepresented in the IT sector. However, in FLOSS (free, libre, and open source) projects the number of women reported is even lower (from 2% to 5% according to several surveys, such as FLOSS 2002  or FLOSSPols ). The FLOSS community is aware of this situation, and some projects, such as GNOME and Debian, have promoted the attraction of female participants.
As the previous surveys date back from the early 2000s, we designed a new web survey in 2013 which was answered by more than 2,000 FLOSS contributors, of which more than 200 were women. From the analysis of the answers provided by men and women, mainly those ones that are on their involvement with FLOSS, their educational level and background and personal status, we wanted to shed some light on how the status of female participation in FLOSS is. This blog post shows a glimpse of this. The survey responses are publicly available and documented for further analysis by third parties .
We have found that women begin to collaborate at a later age than men. Interestingly enough, as can be seen from Figure 1, while both peak at the age of 21, the tail for women is not that abrupt than the one for men. So, women that start in their thirties are 70% of the ones in the 20s, while for men this number decreases to 30%.
Figure 4 - Number of hours per week devoted to contributing to FLOSS projects.
Graphs have different scales. Source 
A pre-print copy of the full paper "Women in Free/Libre/Open Source Software: The situation in the 2010s"  can be found at https://flosshub.org/sites/flosshub.org/files/paper-pre.pdf.
References Rishab A Ghosh, Ruediger Glott, Bernhard Krieger, and Gregorio Robles. Free/libre and open source software: Survey and study, 2002.
 Dawn Nafus, James Leach, and Bernhard Krieger. Gender: Integrated report of findings. FLOSSPOLS, Deliverable D, 16, 2006.
 Gregorio Robles, Laura Arjona Reina, Alexander Serebrenik, Bogdan Vasilescu, and Jesús M González-Barahona. FLOSS 2013: A survey dataset about free software contributors: Challenges for curating, sharing, and combining. In MSR, pages 396-399, 2014. DOI: https://doi.org/10.1145/2597073.2597129
 Gregorio Robles, Laura Arjona Reina, Jesús M. González-Barahona, and Santiago Dueñas Domı́nguez. Women in Free/Libre/Open Source Software: The situation in the 2010s. In OSS 2016, IFIP AICT 472, pp. 163–173, 2016. DOI: https://doi.org/10.1007/978-3-319-39225-7_13