In Eric Horst's classic book How to Climb 5.12, he introduces the concept of a training pyramid. The idea is that if you want to be able to climb a given grade, you first need to climb lots of routes below that grade. He provides the following template to illustrate the concept.
I thought it would be fun to geek out and produce a pyramid graphic using SAS. Based on the climbs I've completed thus far in 2018 (csv), here is what my pyramids would look like for grades 11b-11d.
