https://www.kff.org/report-section/ehbs-2023-section-1-cost-...
Figure 1.12 shows average annual premiums from 1999 to 2023. The ACA was passed in the middle of that range. It's a sustained upwards march, before and after its passage.
For all that cost - 2-3x as much as the other OECD nations spend, inclusive of taxes - we get shitty outcomes.
https://assets.ourworldindata.org/uploads/2016/04/ftotHealth...