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美利坚合众国 - 科技期刊论文

412,542
(数量)
在 2013

科技期刊文章指在以下领域出版的科学和工程文章数量:物理、生物、化学、数学、临床医学、生物医学研究、工程和技术以及地球与空间科学。

Download our latest US ECONOMY cheat sheet Download

Download our latest US ECONOMY cheat sheet

The United States being the biggest economy in the world significantly influences the global economic situation. The US economy is comprehensively covered by data and statistics from multiple government and private sources. We selected the most significant and up-to-date ones and presented them in this cheat sheet.

日期 修改, %
2013 412,542 -0.53%
2012 414,759 1.32%
2011 409,370 2.83%
2010 398,122 2.60%
2009 388,037 1.51%
2008 382,257 1.43%
2007 376,883 1.56%
2006 371,105 2.00%
2005 363,816 8.58%
2004 335,064 11.73%
2003 299,876 2.70%
2002 291,996