Found the following article online, use it to answer the question: The secondary art market, meanwhile, was returning six-figure sums for whose works at auction?

a sample of Oliver's hair contained a very high level of copper, nearly 8 times normal. The debilitating effects of high copper levels, which are associated with some mental illnesses, may have been exacerbated by an imbalance created by low zinc levels in her diet, which was devoid of red meat.Just before her death, Oliver had been shortlisted for the 2006 Clemenger Contemporary Art Award. In the year following, Oliver was amongst 60 artists profiled in Sonia Payes' book Untitled: Portraits of Australian Artists, while in 2008 her final works were included in the Adelaide Biennale of Australian Art. The secondary art market, meanwhile, was returning six-figure sums for her works at auction; in 2007 a record for Oliver's work was set when Skein (2004) went under the hammer for $192,000. By 2010, Sydney Biennale chairman Luca Belgiorno-Nettis was reported to have paid $300,000 for one of Oliver's sculptures, titled Tracery. In 2011, Sydney's College of Fine Arts announced that its new sculpture studio would be named after Oliver. In late 2017 Hannah Fink's book Bronwyn Oliver: Strange Things was launched by Kip Williams at Carthona.Works by Oliver are held in most major Australian art collections, including the National Gallery of Australia, the Art Gallery of New South Wales, the National Gallery of Victoria, Queensland Art Gallery, the Art Gallery of South Australia, the Auckland Art Gallery, the Tasmanian Museum and Art Gallery, Wollongong City Gallery, Orange Regional Gallery, and the Australian government's collection Artbank. The first "comprehensive survey of 50 key works, from the mid-1980s to the final solo exhibition in 2006" was held in Tarrawarra Museum of Art in Healesville, Victoria from 19 November 2016 to 5 February 2017.

Oliver