Hyperinflation is ended with drastic remedies, such as imposing the shock therapy of slashing government expenditures or altering the currency basis. One form this may take is dollarization, the use of a foreign currency (not necessarily the U.S. dollar) as a national unit of currency. An example was dollarization in Ecuador, initiated in September 2000 in response to a 75% loss of value of the Ecuadorian sucre in early 2000. But usually the "dollarization" takes place in spite of all efforts of the government to prevent it by exchange controls, heavy fines and penalties. The government has thus to try to engineer a successful currency reform stabilizing the value of the money. If it does not succeed with this reform the substitution of the inflating by stable money goes on. Thus it is not surprising that there exist at least seven historical cases in which the good (foreign) money did fully drive out the use of the inflating currency. In the end the government had to legalize the former, for otherwise its revenues would have fallen to zero