year | # of sources | % |
---|---|---|
2010 | 1951 | 31.69 |
2011 | 3800 | 61.72 |
2012 | 406 | 6.59 |
month | # of sources | % |
---|---|---|
2010-12 | 1951 | 31.69 |
2011-02 | 534 | 8.67 |
2011-04 | 451 | 7.32 |
2011-06 | 565 | 9.18 |
2011-07 | 1109 | 18.01 |
2011-08 | 549 | 8.92 |
2011-09 | 215 | 3.49 |
2011-11 | 228 | 3.70 |
2012-10 | 403 | 6.55 |