Certainly diagnoses have changed a great deal over the years. I think it was Sara who pointed out that you were in the DSM with a disorder as someone gay, lesbian, or bisexual until 1973. Certainly every time the DSM has gone through a new version, there have been very intense debates, and very “political” debates, I will call them, about what the new DSM should and should not say. Certainly this time around, the hottest debates have been around transgender issues.
I would also like to point out that one of the reasons these debates are so intense in that environment, and perhaps also here, is because of the extraordinary growth in the numbers of transgender, transsexual people worldwide. We have a longitudinal study from Europe on trans people. I don't have the date of publication in my head right now, but the study went back to the 1990s and found that the number of people who are ready to identify as trans has doubled every five years since 1990. It has doubled every five years.
All the clinics that work with trans children, trans teens, and trans adults are reporting not just a doubling in the number of people coming to their clinics, but either a quadrupling or even a sextupling of the number of people coming in. The number that you will most often find, if you look at scholarly documents, is that we are one in 30,000. It's very easy to disprove that number. It's not hard to do; just look at StatsCan. You can disprove that number very easily.
A more recent study in Massachusetts suggests the number is more like one in 200. This is a lot of people. Another recent study in England suggests it's about 1.6% of the population.
The rights of even the smallest minority matter—we all deserve to be treated as human beings—but I do want you to understand that we are a much larger population than most people understand, and a very rapidly growing population.