Cane sugar production runs about 4 million short tons, which is about 8 billion pounds. Beets add a similar, somewhat larger amount.
HFCS production is also on a similar scale, billions of pounds a year. But then 80% of corn goes to animal feed and ethanol production, so HFCS isn't the major end use.
Per https://www.ers.usda.gov/webdocs/outlooks/100085/sss-m-388.p... the recovery rate varies from 9 to 14 percent.
Cane sugar production runs about 4 million short tons, which is about 8 billion pounds. Beets add a similar, somewhat larger amount.
HFCS production is also on a similar scale, billions of pounds a year. But then 80% of corn goes to animal feed and ethanol production, so HFCS isn't the major end use.