Timber exploitation in Cameroon was begun by German colonizers, and grew rapidly after the Second World War. In the 1990s timber export reached its peak. In 2002 annual production was around 2 million cubic metres over a surface area of some 300,000 hectares. The average price of the timber fluctuated around 150 per cubic metre, and was destined for the luxury goods market due to its high quality. The weakness of State controls on the timber trade meant that exporting was problem free. If from the start of the 1900s deforestation was totally unchecked, and was interested only in felling as many trees in the least time possible, today the exploitation of forests is targeting only the most expensive. Six varieties account for nearly 80 percent of timber exploitation: The Ayous (Triplochition scleroxylon), Sapele or Sapelli (Entandrophragma cylindricum), Azob (Lophira alata), Limba or yellow pine (Terminalia superba), Tali (Erythrophleum ivorense) and Iroko (Chlorophora spp.). Another particularly exploited species for its economic value is the Moabi (Baillonella toxisperma), which is a vitally important tree to women forest dwellers due to its versatility in providing medicines, and other subsistence goods. It is also a sacred tree.