[Firaxus]

Inflation, and the even hire steady increases in cost of living with wages lagging far behind; people have to spend a much larger percentage of their income just to sleep somewhere at night than people did in the 2000s, 1990s and 1980s.

This trend has been evident in the US since like the 1960s. If you would like to verify, try comparing median income levels and median cost of living levels for some of those year ranges.