HAVANA The four-decade-old U.S. embargo caused $1.9 billion in damage to Cuba's economy, the Cuban government said in a letter to UN Secretary General Kofi Annan made public Tuesday.

Those figures -- detailed in the 30-page letter -- include $900 million in lost revenue from U.S. tourists, who are barred from visiting the communist island, $69.7 million in losses to Cuba's tobacco industry resulting from the loss of its natural market and $38 million Havana says it must pay in extra costs for food it cannot buy from the United States.

The letter said the administration of U.S. President George W. Bush "has made anti-Cuban rhetoric and commitments with the Miami-based annexationist mafia (anti-Castro exiles) the basis of his actions against Cuba."

The letter seeks Annan's aid in putting condemnation of the embargo on the agenda for the UN General Assembly session set for November, AFP reported.

Bush said Friday he would tighten unilateral U.S. restrictions on travel to Cuba and enforce limits on monies individuals can send to relatives in Cuba, elements of the economic embargo Washington has imposed on the communist island since 1962.

He also said he would expand support to human rights activists and the democratic opposition in Cuba and boost U.S. funding for nongovernmental organizations that work on pro-democracy programs there.