When the Temporary Provisions were made ineffective in 1991, the ROC lacked a legal national currency until the year 2000, when the Central Bank of China (CBC) replaced the Bank of Taiwan in issuing NT bills [REF].
The exchange rate compared to the United States dollar has varied from less than ten to one in the mid-1950s, more than forty to one in the 1960s, and about twenty-five to one in 1992.