China for the first time revealed the historical composition of its massive forex reserves and the return on investments it made with the money, as part of what regulators called efforts to improve transparency and confidence in the country’s economic and financial position. This composition has typically been a closely guarded secret. The State Administration of Foreign Exchange (SAFE) said in its 2018 annual report that China’s U.S. dollar-denominated assets accounted for 58% of the total at the end of 2014 when the hoard amounted to $3.84 trillion. That’s down from 79% at the end of 1995, when the reserves were just $73.6 billion, the report said. The administration achieved an annual average return of 3.68% on its investments over the 2005 to 2014 period, it said. SAFE will continue to diversify its foreign-exchange reserves and will do so in a “steady and prudent” way, the report said. It will also strengthen the medium- to long-term asset allocation of forex reserves this year to try to preserve and increase the value of the assets.