The monetary base in Japan climbed 19.4 percent on year in May, the Bank of Japan said on Friday - standing at 455.995 trillion yen.
That follows the 19.8 percent jump in April.
Banknotes in circulation gained an annual 4.4 percent, while coins in circulation gained 1.1 percent.
Current account balances spiked 24.8 percent, including a 24.1 percent jump in reserve balances.
The adjusted monetary base advanced 16.1 percent to 484.102 trillion yen.
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