year | # of sources | % |
---|---|---|
2006 | 137 | 2.40 |
2007 | 224 | 3.93 |
2008 | 721 | 12.65 |
2009 | 3580 | 62.81 |
2010 | 1038 | 18.21 |
month | # of sources | % |
---|---|---|
2008-08 | 128 | 2.25 |
2008-12 | 205 | 3.60 |
2009-02 | 159 | 2.79 |
2009-05 | 165 | 2.89 |
2009-06 | 169 | 2.96 |
2009-07 | 159 | 2.79 |
2009-08 | 240 | 4.21 |
2009-09 | 290 | 5.09 |
2009-10 | 455 | 7.98 |
2009-11 | 623 | 10.93 |
2009-12 | 1079 | 18.93 |
2010-01 | 1038 | 18.21 |