Method & caveats. Gallup National Health and Well-Being Index (U.S. adults, tens of thousands of interviews a year), Cantril Self-Anchoring Striving Scale: respondents rate their life today and their expected life five years from now on a 0–10 ladder. Gallup moved from daily phone tracking to its web panel over 2018–2020. Values are Gallup's own published annual figures.
Sources
Every value on this page is read from the publisher below. Current and historical source documents: