'Curious: How are these data derived? Are they annual changes to GDP averaged, or are they changes over these presidents' whole terms, and then annualized?. . . the overall economic performance of different parties:
Meaning, if years 1-4 had growth of say +1%, +2%, -1%, and +3%, is the reported number the average 5% / 4 = +1.25%, or is it +1.239% (the 5.049% growth over the four years, annualized)? It wouldn't make a big difference, which is why I say I'm only curious.