Japan’s digital money market is thriving, thanks to improved public trust in virtual currencies like bitcoin.

A total of JPY430 billion (USD4.29 billion) worth of bitcoins were traded in the first half of 2016—about 50 times more than the trading volume in the same period last year, according to figures obtained by Nikkei Asian Review.

“Since this spring, the trading volume has been growing at a pace that we have never seen before,” Yuzo Kano, chief executive of bitFlyer, told the news outlet.

bitFlyer, which handles about 40 percent of bitcoin trading in Japan, has seen its customer base rise tenfold from a year ago. The bitcoin exchange said it has already surpassed 200,000 customers for August alone.