Tourism Ranking (2011)
Malaysia 24.7 million people
Thailand 19.1 m.
Singapore 10.4 m.
Indonesia 7.7 m.
Vietnam 6.0 m.
Phillipines 3.9 m.
Cambodia 2.9 m.
Laos 1.7 m. (2010)
Myanmar 0.39 m.
Brunei 0.24 m.

credit: world tourism organisation