The data was from here https://www.measuringworth.com/datasets/usgdp/
US Real GDP from 1870 to 2017, adjusted to 2012 prices.
Looked at as a whole America is not poor and America is not particularly short of money per person compared with previous decades. I know that is, on one level, an unremarkable thing to say but there has been such a long running campaign that somehow modern nations ‘can’t afford’ schools, healthcare or infrastructure spending that is it worth noting that technically ‘per person’ the US has never been richer. The issue is not the total divided by the population but the distribution and the unwillingness of the wealthy to pay taxes to support the fabric of the country that makes their wealth.
This graph is from here https://fred.stlouisfed.org/series/A939RX0Q048SBEA showing the same thing but on a post-WW2 timescale (grey areas are dips in GDP).