> What was the historical trend?
No, it is not normal for 10% of the coountry to power half the spending. Just think about that statistic for a second. Spending includes groceries, services, and other continual needs. A few private jets can't outspend millions of people buying food.
But here's your chart: https://preview.redd.it/2pcvmm0u3jpf1.png?width=798&auto=web...
>No, it is not normal for 10% of the coountry to power half the spending.
Yet, if you look at your chart, it was 40% in 1989s and have been slowly edging up. While 40% is a smaller number than 50%, you can make the same argument about 40% not being "normal", yet society has been chugging along just fine.