"Grants Funding And Development Growth" figure included in Gitcoin whitepaper was produced in-part thanks to data obtained from Gitcoin Data Portal, as I believe it to be inspired by report linked below.

https://www.gitcoin.co/whitepaper/read

More directly you can see my handle quoted in blog post measuring impact of Gitcoin grants:

https://docs.opensource.observer/blog/gitcoin-grants-impact

You can see some of my contributions to OS-Observer in this repository:

https://github.com/opensource-observer/oss-directory

You can find my code contributions to Data Portal here:

https://github.com/davidgasquez/gitcoin-grants-data-portal