Agriculture is the main factor, and it has been transformed into an industrialized free market economy with international competitiveness. The export value of deer antler, mutton, dairy products and wool is the first in the world. New Zealand is also one of the most beautiful countries in Oceania, with a total of about 30 (%) protected areas. It has three World Heritage sites, 14 national parks, 3 ocean parks, hundreds of nature reserves and ecological zones.