The real change in numbers is before about 1990 and after 1990, for generations the left used the fake number of 10% which I don’t think many of us ever believed but it was all the media would give us.
10% would be very close to the size of the black population, 10% homosexuals would mean that they would be everywhere and that they would be a part of our everyday lives, families and social circles, not a rarity.
It was only in the many more serious studies of the last 20 years that we started getting studies that offered more credible numbers of 1.3% and 2% and 2.7% depending on how they are done. Now the gay movement is trying to round everything up to 5% in yet another effort to make a more media friendly number than 1.5 for instance.