The dates for these opinion polls range from January 2007 to the present day.
Polling was initially sporadic, but it has been carried out almost every month since January 2021.
The question typically asked by pollsters is "Should Wales be an independent country?".
[1][2] A graphical summary of yes/no independence polls, excluding non-standard questions.
"0–10" Independence polls – (Respondents asked to rate 0–10.