Region
Japan
3
Australia --
2
European Economic Community countries
2
Japan --
2
United States
2
United States --
2
Asia
1
Asia --
1
Asia, Southeastern
1
Asia, Southeastern --
1
Australia
1
Congresses
1
East Asia
1
East Asia --
1
European Economic Community countries --
1
European economic Community countries --
1
Pacific Area --
1
Taiwan
1