What year did TSA's membership exceed 200,000?

The year when TSA's membership exceeded 200,000 was 2014. This milestone is significant as it reflects the growth and expanding influence of the TSA during that period, likely due to increased awareness and engagement with transportation security initiatives. The surge in membership could indicate a heightened public interest in safety and security issues related to travel, as well as the effectiveness of the TSA's outreach efforts. This growth would not have occurred in the earlier years, as the numbers only reached this level in 2014.