At Hooktheory, a music theory blog, they analyzed the chord patterns of 1,300 popular songs to look for patterns. You’re looking at the most-used chords when songs are transposed into the key of C (the most popular key in pop music by a 2-to-1 ratio).
If you know anything about music theory, that graph makes sense. The I-IV-V chords own it. And the Am? That’s the vi, forming a chord progression that has apparently worked for pop music since the 50’s.
Original? No. But hey, everything is a remix.