400-835-0088
| 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 美元 | 71.0% | 70.5% | 70.7% | 66.5% | 65.8% | 66.0% | 66.4% | 65.7% | 64.1% | 64.1% | 62.1% | 61.8% | 62.3% | 61.1% | 61.0% | 63.1% | 64.0% | 64.0% | ||
| 欧元 | 17.9% | 18.8% | 19.8% | 24.2% | 25.3% | 24.9% | 24.3% | 25.2% | 26.3% | 26.4% | 27.6% | 26.0% | 24.7% | 24.3% | 24.4% | 22.1% | 20.3% | 19.7% | ||
| 英镑 | 2.9% | 2.8% | 2.7% | 2.9% | 2.6% | 3.2% | 3.6% | 4.2% | 4.7% | 4.0% | 4.3% | 3.9% | 3.8% | 4.0% | 4.0% | 3.8% | 4.7% | 4.4% | ||
| 日圆 | 6.4% | 6.3% | 5.2% | 4.5% | 4.1% | 3.8% | 3.7% | 3.2% | 2.9% | 3.1% | 2.9% | 3.7% | 3.6% | 4.1% | 3.8% | 3.9% | 3.8% | 4.2% | ||
| 加拿大元 | 1.5% | 1.8% | 1.9% | 1.9% | 2.0% | |||||||||||||||
| 澳大利亚元 | 1.5% | 1.8% | 1.8% | 1.8% | 1.8% | |||||||||||||||
| 瑞士法郎 | 0.2% | 0.3% | 0.3% | 0.4% | 0.2% | 0.2% | 0.1% | 0.2% | 0.2% | 0.1% | 0.1% | 0.1% | 0.1% | 0.3% | 0.3% | 0.3% | 0.3% | 0.2% | ||
| 其他 | 1.6% | 1.4% | 1.2% | 1.4% | 1.9% | 1.9% | 1.9% | 1.5% | 1.8% | 2.2% | 3.1% | 4.4% | 5.4% | 3.3% | 2.9% | 3.2% | 3.2% | 2.5% | ||
| Sources: | ||||||||||||||||||||
理论
经济学家对于单一货币是否可以始终控制世界经济争论不休[17]。不少人认为，由于网络外部性，一种货币可以长期保持霸主地位，特别是在贸易和国际债务上。
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