2015 shows progression for 9a+ sending

The progression in the number of climbers sending a 9a+ sport route in a given year had been stagnant through 2014. Annually, approximately 10 individuals were able to reach this level. However, the total number never grew. This is in contrast to the 9a grade which has continuously been on the rise year to year. The good news is that this number has doubled for 2015 relatively to previous years. On the other hand, we have seen a stagnation in 8C boulder ascents. It just might be that sport climbing is once again becoming the preference for top climbers?