The City Bank Inflation Surprise Index

The city bank economic surprise index measures the difference in the actual releases of economic numbers verses their expectations. And ever since the 20 20, letust call it a spike higher, after the initial problems, we have this spike higher and since then it's been aging. This is occurring at the same time that we see the economy sagging. How can we have if these are both surprise indexes? Both go by a difference between what the expectation was and what really happened.