Make of it what you will and feel free to use this for your own research projects. These are reals stats from all of my students, most of which are of primary school age, and some are high school and adult ages.
The stats are an open look at how many girls and boys tend to learn guitar, drums and ukulele. The aim of these stats really is to show that the numbers are either fairly equal, or not too far apart, despite the apparent unequal representation in the music industry.