Ask Sam: Break down of web/mobile startups vs. 'Other' Start-ups

I've been seeing a number of interesting start-ups in areas (energy, biotech) outside of YCs historical focus on web/mobile based start-ups (as you had written about). Realizing there isn't a well-defined dichotomy between the two, do you have a rough % breakdown of the two types of start-ups in the current batch and how this might change in upcoming batches?