According to this article, 93% of Helium goes to industrial uses.
Shockingly (to me) "The [U.S.] government [through the BLM]provides more than one third of the world's helium, selling it to private plants for processing.
Saw a great show on the History Channel that gave details on the BLM's involvement in helium. Basically it runs the US national Helium storage facility, they pump it into the ground somewhere out west, Texas maybe, and store 2/3ds of the World supply of Helium there. Pretty cool show.