€144 billion currently it is assumed, but no one really knows as no one has counted - and weighted - the gold for a long time, at least the Govt didn't. But 144B is not nearly enough to provide any currency stability.

[edit] "But not even the owners are allowed to view their own gold. According to the Federal Audit Office report, the Fed explained that "in the interest of security and of the control process" no "viewings" are possible." http://www.spiegel.de/international/germany/german-politicia...