Certainly, and thank you for the question.
In fact, antibiotic use is very infrequent. It's not a normal part of egg layer production. That's for both the shell eggs and the processed eggs. Basically, of all the eggs that are produced, about 70% of them will go into the shell egg market, about 30% will go into the processed market, but all those are pasteurized when they're broken.
In any case—and given the time; I was trying to be conscious of that—there are other aspects to the whole debate on caged versus non-caged. By having the birds in cages, either enriched or conventional cages, where they're separated from the manure, that's part of why we very infrequently use antibiotics. When the birds are on the ground and in contact with their manure, there is some risk of more disease.
There is no one system that is perfect. There are pros and cons to each, even with respect to environmental sustainability, which we haven't talked about. Layer production in cages is one of the most efficient forms of animal agriculture there is in terms of minimizing impact on the environment. As you take birds out of cages, you need more land, you have more challenges handling manure, and the environmental impact changes accordingly. There are a lot of puts and takes, but you are correct that antibiotic use is not common and is done under veterinary supervision if it is needed.