Question: In what year was the nominate cheetah subspecies, that makes the Entabeni Game Reserve it's home, classified as Vulnerable by the IUCN?

Related documents: [0]  [DOC] The Entabeni Game Reserve, Entabeni means 'place of the mountain', is a 220 km2 private reserve situated in the Waterberg in Limpopo Province in northern South Africa. The Entabeni Reserve is popular for safari trips because of the opportunity to see big game and a variety of birds and antelope species, as well as its beautiful scenery, and the fact that it is in a malaria-free zone. The reserve is home to Transvaal lion, African bush elephant, South African giraffe, African leopard, South African cheetah, warthog, African buffalo, hippopotamus and other safari animals in a variety of habitats. [END] 
[1]  [DOC] The South African cheetah ("Acinonyx jubatus jubatus"), also known as the Namibian cheetah, is the most numerous and the nominate cheetah subspecies native to Southern Africa. Since 1986, it has been classified as Vulnerable by the IUCN. The South African cheetah live mainly in the lowland areas and deserts of the Kalahari, the savannahs of Okavango Delta and the grasslands of the Transvaal region in South Africa. In Namibia, cheetahs are mostly found in farmlands. The South African cheetah was first described by the German zoologist Johann Christian Daniel von Schreber under the trinomen "Felis jubatus jubatus" in the Dutch Cape Colony in 1775. [END]  
Answer: 1986
1986