1995

1996

1997

1998

1999

2000

2001

Austria (AT)

Australia (AU)

3

3

2

3

Belgium (BE)

1

1

1

Canada (CA)

2

3

2

1

Switzerland (CH)

5

2

10

6

2

China (CN)

1

4

1

2

1

6

Germany (DE)

12

3

6

5

1

Spain (ES)

2

2

France (FR)

2

12

16

2

3

8

3

Great Britain (GB)

2

4

8

1

2

9

5

Hong Kong (HK)

2

2

4

9

8

2

Indonesia (ID)

Ireland (IE)

3

1

Italy (IT)

6

6

2

2

4

Japan (JP)

20

32

17

39

38

28

67

South Korea (KR)

7

5

17

9

26

5

14

Netherlands (NL)

9

5

7

6

4

2

8

Singapore (SG)

1

2

1

2

Thailand (TH)

8

3

1

5

1

Taiwan (TW)

12

9

14

17

4

8

10

United States (US)

33

39

42

25

30

17

29

Vietnam (VN)

1018

1519

997

933

899

1110

890

Other countries

4

1

1

2

0

6

Total

1131

1646

1153

1057

1036

1206

1052