That's not too surprising. The share of US GDP compared to the rest of the world has been dropping since 1960. You also have two other currencies that could reasonably act as reserve currencies which couldn't 20 years ago.
It's also worth noting that a reserve currency is not a necessity to begin with. Countries can just hold commodities and use national currencies to trade with each other as we're increasingly seeing happen.
That's not too surprising. The share of US GDP compared to the rest of the world has been dropping since 1960. You also have two other currencies that could reasonably act as reserve currencies which couldn't 20 years ago.
It's also worth noting that a reserve currency is not a necessity to begin with. Countries can just hold commodities and use national currencies to trade with each other as we're increasingly seeing happen.