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Statements of Assets and Liabilities (Parentheticals) - USD ($)
$ / shares in Thousands
Dec. 31, 2016
Dec. 31, 2015
Investment in gold bullion, cost $ 7,706,923,343 $ 5,910,175,908
Shares, par value (in dollars per share) $ 0 $ 0
Shares, issued (in shares) 655,000,000 508,100,000