Country

Number of publications

%

The United States

295

36%

Australia

108

13%

The United Kingdom

62

8%

The Republic of China

55

7%

The Netherlands

36

4%

Canada

34

4%

South Africa

31

4%

Singapora

28

3%

Spain

24

3%

New Zealand

23

3%

Taiwan

21

3%

Israel

14

2%

Germany

13

2%

Ireland

12

1%

Sweden

11

1%

Others

44

5%