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What adjustments have been made to the PSA since it was introduced?
November 27, 2023
The PSA was adopted in December 2004 and historically has changed on the following dates.
- June 2006: -$0.002
- June 2007: $0.006
- December 2007: $0.009
- December 2008: $0.01
- June 2012: -$0.005
- December 2022: $0.005
- June 2024: -$0.005