49 visiting now: 27 China 
16 USA 
1 Myanmar 
1 Iran 
1 Russia 
1 Japan 
1 Singapore 
1 Kuwait 
16 USA 1 Myanmar 1 Iran 1 Russia 1 Japan 1 Singapore 1 Kuwait 16 USA 1 Myanmar 1 Iran 1 Russia 1 Japan 1 Singapore 1 Kuwait