Gibraltar was re-included into the new miniature sterling area on 1 January 1973, and the other sterling area countries responded as they chose—in fact, some of these countries had already taken similar measures throughout the 1950s and 1960s. Following the British government's decision in June 1972, some countries immediately copied the British government, and others did so over the next few months. Singapore continued operating sterling area exchange controls until as late as 1978, and Brunei did not alter its sterling area exchange controls until the year 2001.