Is there any data backing this that shows the Euro is less stable than the USD? It seems like it would be a fine choice for a reserve currency to replace USD,

Is there any data backing this that shows the Euro is less stable than the USD? It seems like it would be a fine choice for a reserve currency to replace USD, if USD goes to shit. Remember it doesn't have to be better than the USD ever was, it just has to be better than the USD now.