Acceptance rate for studying abroad at UCL?

Like the title states, does anyone know what my chances are in getting accepted to study abroad for one academic year in UCL?
Currently, I am a sophomore at a CSU in California and I want to study abroad my junior year at UCL to study International Relations.
I have a 3.896 average GPA and am involved in a few extracurricular activities.
I am the Treasurer of my university’s International Relations honors society and the Vice President of our Human Trafficking Awareness club. I was also involved in Model United Nations and was able to attend many conferences, including the NMUN conference held in New York where I had the privilege to meet brilliant minds from all over the globe.
So, what do you think my chances are of getting accepted to study abroad at UCL?