NBS-China_Post and Telecom_Length of IP Calls
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Date:2013-01-15 Source:国家统计局
yujie
Time frame: 1999 - 2011
Unit: 100 mln Minute
Frequency: yearly
Source: NBS China
Period | Amount |
1999 | ** |
2000 | ** |
2001 | ** |
2002 | ** |
2003 | ** |
2004 | ** |
2005 | ** |
2006 | ** |
2007 | ** |
2008 | ** |
2009 | ** |
2010 | ** |
2011 | ** |