The numbers are below. And they are pretty horrifying.
The Physicians Committee for Responsible Medicine calls itself "Doctors and laypersons working together for compassionate and effective medical practice, research, and health promotion." They are the ones who provided the information in an article entitled Health vs. Pork: Congress Debates the Farm Bill.
Here's the key excerpt from the article:
"The bill provides billions of dollars in subsidies, much of which goes to huge agribusinesses producing feed crops, such as corn and soy, which are then fed to animals. By funding these crops, the government supports the production of meat and dairy products—the same products that contribute to our growing rates of obesity and chronic disease. Fruit and vegetable farmers, on the other hand, receive less than 1 percent of government subsidies."
Scary stuff, eh? There is an eye-opening graph on their site entitled "Why does a salad cost more than a Big Mac?" that spells this out even clearer. It is worth looking at.