Japan has consistently accounted for around 50% of total use of the facility in May
apps.newyorkfed.org/markets/autora…
a) Japan's banks and lifers have a big dollar funding/ hedging need.
b) Unlike the Taiwanese lifers who always hedged primarily with their own central bank, the Japanese system largely used to hedge in the market
ft.com/content/df9e34…
Don't think Japan's aggregate dollar funding need has increased by $225b (use of the Fed line) so someone pulled back.