Just be careful with that confirmation bias Mick.

Don't trust, verify: was the first measles vaccine really introduced in 1968 in the US as your graph suggests? Answer is no... it was introduced in 1963

Also, the data presented in your graph seems to be shifted to the left, when comparing with other sources, just saying...

Please let us know if the following book review, the source of your measles vaccine graphs, was insightful:

https://medium.com/@visualvaccines/why-dr-suzanne-humphries-an-anti-vaccine-activist-is-lying-to-you-about-measles-ce446d0a7e0f