What Percentage of Transgenders Regret Surgery?

Summary: 

The 2015 U.S. Transgender Survey claims that 11% of female respondents regret surgery enough to change back to their original sex. Transgender men had a reversion rate of 4%. But considering that transgender surgery can range from $7,000 to well over $50,000 depending on the sex and extent, is that a surprise? There are those who consider themselves transgender but do or do not have surgery, just as there or those that may have some treatment (e.g. hormones or partial surgery) but not complete the process or be left in limbo.