In this document (Page 7, point 4.3), Garrett Reisman notes that an analysis by Aerospace Corporation showed the most common causes for launch failures between 1980 and 1999. This document shows the top 3 causes as:
- Engine failure
- Stage-separation failure
- Avionics failure
Given that there are several new players with different designs introduced recently, I'm curious if those were still major causes in 2000 - 2014. Additionally, I wonder how the Space Shuttle affected these statistics (Given that it is a significantly different design from most other launch vehicles). Finally, I would like to know if the launch success/failure rate has gone up or down since 2000 - 2014 as compared to 1980 - 1999?