Region
United States
17
United States --
15
Asia
10
Pacific Area
7
Europe
4
Asia, Southeastern
3
Asia, Southeastern --
3
China
3
Europe --
3
Asia --
2
China --
2
Philippines
2
Russia (Federation)
2
Russia (Federation) --
2
China. Chung-Kuojen Min Chieh Lang Chiin --
1
Developing countries
1
East Asia
1
Iran
1
Iran --
1
Japan
1
Korea (South)
1
Korea (South) --
1
Malaysia
1
Malaysia --
1
Oceania
1
Oceania --
1
Pacific Area --
1
Pacific area --
1
Philippines --
1
Russia (Federation). Voenno-Morskoi Flot
1
Russian(Federation)
1
South Africa --
1
South Asia
1
South Asia --
1
Southeast Asia
1
Southeast Asia --
1
Soviet Union
1
United State
1
United states --
1