Gallup's Economic Confidence Index is a summary measure of Americans' perceptions of current economic conditions and their outlook for the economy. It has a theoretical range of +100 (if all respondents say the economy is excellent or good and that it is getting better) to -100 (if all say it is poor and getting worse).
The latest results are based on a May 2-22 Gallup poll, conducted at a time of record-high gas prices, elevated inflation, government reports of declining economic growth in the first quarter, and a slumping stock market. Low unemployment is a rare bright spot, but employers are still struggling to find workers to fill needed jobs, which is contributing to ongoing supply chain problems.
Gallup has measured Americans' perceptions of the economy on its multiday telephone surveys since 1992, but did so infrequently between 2009 and 2017. It is possible that confidence was lower at some point during those years than it is now.