Table 1 Top 10 countries according to the annual number of articles from 2003 to 2014
Year | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|---|---|---|---|---|---|---|---|---|---|
2003 | USA | United Kingdom | Japan | Germany | Canada | France | Australia | Switzerland | Netherlands | Turkey |
2004 | USA | United Kingdom | Japan | Germany | Canada | France | Australia | Switzerland | Turkey | Netherlands |
2005 | USA | United Kingdom | Japan | Germany | Canada | France | Australia | Netherlands | Turkey | Switzerland |
2006 | USA | United Kingdom | Japan | Germany | Canada | France | Switzerland | Sweden | Australia | Netherlands |
2007 | USA | United Kingdom | Japan | Germany | Canada | France | Australia | Netherlands | South Korea | Turkey |
2008 | USA | United Kingdom | Japan | Germany | Canada | France | Turkey | South Korea | Netherlands | Australia |
2009 | USA | United Kingdom | Japan | Germany | Canada | France | South Korea | Turkey | Netherlands | China |
2010 | USA | United Kingdom | Japan | Germany | Canada | Netherlands | France | Australia | China | South Korea |
2011 | USA | United Kingdom | Japan | Germany | China | Canada | South Korea | Australia | France | Switzerland |
2012 | USA | United Kingdom | China | Japan | Germany | South Korea | Canada | Netherlands | Australia | Italy |
2013 | USA | United Kingdom | China | Japan | Germany | South Korea | Canada | Netherlands | Australia | Switzerland |
2014 | USA | United Kingdom | China | Japan | Germany | Canada | South Korea | Netherlands | Italy | Australia |