[OC] Das Gleichgewicht der politischen Parteien und Regierungen der USA im Erwachsenenalter (18+) der Amerikaner, 1946-2020, V.2

[OC] Americans under 58 have had mostly Democratic presidents, while older Americans have had mostly Republican presidents.

This chart shows the cumulative ADULT years (18+) an American would have lived under a Democratic or Republican president, starting with a 22-year-old born on January 20, 2003—who has only 4 adult years, all under Biden—and extending to a 98-year-old born on January 20, 1927—who was 18 in 1946 and then has experienced 40 adult years each under both Democratic and Republican presidents. The cumulative years are calculated as the sum of each individual’s adult years, divided according to the years when either a Democrat or Republican was president.

NOTE: Years are qualified to only those 18 years and older because these are the years when Americans have been generally regarded as “adults” and likely when they will begin to become independent from their parents, securing a place to live, going to college or learning trades, working in jobs and careers, and paying taxes—therefore likely experiencing the effects of presidential administrations, at least more so than when being an infant, child, or adolescent.

Fun fact: Depending on the birthdate during the year, some people may have an equal complement of Democrat and Republican years if they are of the age 26, 42, 66, 82, or 98.

Data was scraped and massaged in R from Wikipedia page for [United States presidential inauguration](https://en.wikipedia.org/wiki/United_States_presidential_inauguration). Preliminary visualizations done with ggplot, then into an SVG imported to Adobe Illustrator for finesse and annotations.

Chart shows even ages only (for sake of legibility), but full final data for all ages is shared here in a Google Sheet](https://docs.google.com/spreadsheets/d/1n7v2P2pb07DSVhYmJuQec04FdoN1qyxscbFETQQo43s/edit?usp=sharing).r

This is a really clunky way of showing this information, and the 18+ aspect is almost irrelevant when you have to start doing mental gymnastics to work out when one was 18.

The intention here is interesting but I wouldn’t call the organization beautiful. The center strip being keyed to “age in 2020” is really silly. I don’t know what age I was in a specific year without doing some mental math. Why not just list by birth year?

If you insist on keeping that format, the “yrs old in 2020” should at least be right at the top and highly obvious, so someone can understand what they’re looking at.