I have in the past seen sudden big moves like 6 mos or more in the USD and in my view were not natural market forces. Simply change of gov’t policy. Higher USD helps the foreigners, and lower USD to help domestic USA and China. USD and Chinese Yuan are mostly pegged, allowed to fluctuate slightly for appearance sake.
That silly ass approximate 7 yuan to $1 exchange rate has been going on for decades. Or how else would big business move over there and survive over there since 1970 without a guaranteed peg? And we all know who the gov’t lacky is that does the big trades on command. If we REALLY want to decouple with China they NEED to LOWER the Peg down to 2 Yuan to the $1 just to be equal and fair.
Below view the “pegged” Yuan to USD