By August 2006, over 360 organizations and 4,000 individuals had signed the initiative.
But within weeks, about 600 companies and organizations had signed on.
When the organization signed its lease in 1975 the space cost $2 a foot.
By 24 October 2011, 324 organizations had signed the declaration.
More than 120 organizations, both in Cuba and abroad, have signed it.
As of October 2007, more than 240 scientific organizations had signed the declaration.
By 31 January 2013, 417 organizations had signed the declaration.
Within weeks, about 600 companies, trade groups and other organizations had signed on for a two-pronged lobbying effort.
The two organizations signed an agreement in January 1989 recognizing their independence.
Only free market democracies are allowed to join, but experts believe the organization could sign a cooperation agreement with China.