It's a good question. I've been harping on surveillance. Surveillance is one of the key areas we need to continue working on so that we have a better handle on exactly the amount of usage throughout the industry.
Certainly, over the last number of years, the amount of “raised without the use of antibiotics” products and chicken has been increasing. More importantly, I spoke to the fact that we don't think “raised without the use of antibiotics” is sustainable for the entire industry. We've seen the demand for products raised without the use of antibiotics of importance to humans, categories I to III, start to increase.
Certainly, as an industry, that's where we'd like the attention to be placed so that we still have tools in our tool box and are focusing on the most important antimicrobials.