Under the Economic Management System, developed during the 1970s and approved by the PCC Congress in 1975, state committees for statistics and finances have been established, and formal state budgets, abandoned in 1967, have been reintroduced. State revenues come from the nationalized enterprises, income tax, social security contributions, and foreign aid.
The US Central Intelligence Agency (CIA) estimates that in 2000 Cuba's central government took in revenues of approximately $14.9 billion and had expenditures of $15.6 billion. Overall, the government registered a deficit of approximately $700 million. External debt totaled $12.3 billion.
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