year | # of sources | % |
---|---|---|
2006 | 5099 | 4.42 |
2007 | 11448 | 9.93 |
2008 | 15798 | 13.70 |
2009 | 64699 | 56.13 |
2010 | 18222 | 15.81 |
month | # of sources | % |
---|---|---|
2008-03 | 2320 | 2.01 |
2009-06 | 2365 | 2.05 |
2009-07 | 3703 | 3.21 |
2009-08 | 4961 | 4.30 |
2009-09 | 5004 | 4.34 |
2009-10 | 8250 | 7.16 |
2009-11 | 10972 | 9.52 |
2009-12 | 20401 | 17.70 |
2010-01 | 18222 | 15.81 |