Just Think...

There are an estimated 650 million persons living with disabilities in the world today. If one includes the members of their families, there are approximately 2 billion persons who are directly affected by disability, representing almost a third of the world’s population. Thus, persons with disabilities represent a significant overlooked development challenge, and ensuring equality of rights and access for these persons will have an enormous impact on the social and economic situation in countries around the world.

http://www.un.org/disabilities/default.asp?id=18