In Australia, three farming methods for the production of eggs are utilised. In 2011, traditional cage (or battery) eggs accounted for 42% of value, barn-laid eggs account for 10% of value, free-range eggs accounted for 44% of value, and organic eggs accounted for 4% of value. Increased demand for free range eggs due to customer concerns over animal welfare has led to a number of different standards developing in relation to three core welfare measures - indoor stocking density, outdoor stocking density, and beak trimming. The Model Code of Practice recommends practices for free range farming with the following standards: