(+) numbers mean purchases of the USD (sell Yen), (-) numbers mean sales of USD (buy Yen). Unpublished data.
Copyright, 2014, Bank of Japan.
Source: Bank of Japan
Release: Japan Foreign Exchange Intervention
Bank of Japan, Japanese Intervention: Japanese Bank purchases of USD against JPY© [JPINTDUSDJPY], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/JPINTDUSDJPY/, August 28, 2015.