http://www.taipeitimes.com/News/taiw.../19/2003700716
The results showed that 36.2 percent of respondents supported an independent Taiwan, while 26.1 percent favored unifying with China and 23.2 percent supported maintaining the “status quo” in cross-strait relations.
https://en.wikipedia.org/wiki/2014_C...tus_referendum
UNDP in Crimea conducted series of polls about possible referendum on joining Russia with a sample size of 1200:
Quarter Yes No Undecided
2009 Q3[35] 70% 14% 16%
2009 Q4[35] 67% 15% 18%
2010 Q1[36] 66% 14% 20%
2010 Q2[36] 65% 12% 23%
2010 Q3[36] 67% 11% 22%
2010 Q4[36] 66% 9% 25%
2011 Q4[37] 65.6% 14.2% 20.2%