This is stated on the website of the Russian financial department.

“As of May 1, 2022, the volume of the NWF amounted to 11,005,374.1 million rubles, or 8.3% of GDP projected for 2022… which is equivalent to $154,953.5 million,” the statement says.

According to RIA Novosti, as of April 1, 2022, the volume of the NWF was 13.052 trillion rubles, which was equivalent to $155.227 million.

Earlier, the Central Bank called the volume of Russia's international reserves.