About 120,000 cubans left Cuba in 1980 to go have a life in the US.
Between year 1959 which it is when Fidel Castro entered to power to 1980, an estimation of 675,000 Cuban immigrants arrived to the US.
The US have agreed on helping with migration problems in the future, but for now the immigration policy applied by the US to Cubans, which will imply a special treatment in their favor, will stay the same for now because by improving it, it will be complicate to maintain.
When the US and Cuba had a change of presidents, Barack Obama of the US and Raul Castro for Cuba, the US decided to reconsider and check through again the migration policy that their country had with Cuba. The new presidents may arrange the Cuban migration policy.
Due to political problems mostly, Cuban migrants left Cuba and went to the US mostly in Florida. Until the year 2008, an estimate of 1.24 million or more Cuban were living in the US. It is about one third of miami's population