[nagdu] How many Service Animals?

[Marion Gwizdala]

Dear All,
    I was contacted by a reporter doing a story on the new regulations concerning service animals and she asked how many service animals there were in the U.S. I know we had this exchange awhile back but I cannot seem to find those messages. Can anyone give me a reliable source for this information? Any help is greatly appreciated.

Fraternally yours,
Marion Gwizdala