The US American Livestock Breeds Conservancy considers their status to be critical,[2] which means there is an estimated global population of less than 2,000, and fewer than 200 annual registrations in the United States.[26] The UK Rare Breeds Survival Trust also considers their status to be critical, with less than 300 breeding females registered worldwide.[27] The Equus Survival Trust also considers the breed population to be at critical levels, meaning there are between 100 and 300 breeding females left in the world.[28] Currently, there are about 135 purebred horses in the US and Canada recorded with the North American registry.[6] There are also small populations in Japan, New Zealand, and Australia.[7] In 2006, an estimated 550 Cleveland Bay horses existed worldwide, of which about 220 were mares; the 2005 foal crop produced fewer than 50 horses.[29]