I built a little tool to let me assign three colours to each Avenger, so they’re all represented by small spheres (now would be a good time to look at the full resolution version of that image – a good strategy for everything I’m going to put in this post) We can see a big cluster of major Avengers appearing in the first few episodes, with some other big names coming in the next few years (Vision, the Avenger with the 3rd most appearances in issues, doesn’t come along until #57). While there are a couple of major additions along the way (She-Hulk & Photon in 1982), we can see that the cast of characters for the team is defined pretty early.
One of the first things that I was interested in was the gender balance in the Avengers over time. While there have been women on the team since the beginning (Janet Van Dyne, aka The Wasp, appears in issue #1), has this changed or increased over the 50 year span of the series?: