The dollar's share of global currency reserves reported to the International Monetary Fund (IMF) in the second quarter fell to its lowest level since the end of 2013, while the yen's share rose to its highest level in nearly 20 years, data published on Monday showed.

Reserves in US dollars amounted to $ 6.79 trillion, equivalent to 61.63% of total reserves allocated in the second quarter, compared with $ 6.74 trillion or 61.83% in the first quarter.

This is the lowest share of dollar reserves in total since the fourth quarter of 2013, when it stood at 61.27%.

Total reserves increased to $ 11.02 trillion in the second quarter from $ 10.90 trillion in the previous quarter.

Global reserves are assets held by banks in different currencies, mainly used to support their liabilities. Central banks sometimes use reserves to support their currencies.

While the dollar's share of foreign exchange reserves declined, the share of the euro, yen and Chinese yuan increased compared to the previous quarter.

The dollar remains the dominant reserve currency, but central banks around the world appear to continue to diversify their reserves rather than just the dollar.

The yen's share of global currency reserves increased to 5.41% in the second quarter of 2019, the highest since the first quarter of 2001.

The yuan's share also rose to 1.97%, its highest level since the IMF began announcing its share of central bank holdings in the fourth quarter of 2016.