year | # of sources | % |
---|---|---|
2013 | 24499 | 88.72 |
2014 | 3070 | 11.12 |
month | # of sources | % |
---|---|---|
2013-03 | 12019 | 43.53 |
2013-05 | 7761 | 28.11 |
2013-06 | 582 | 2.11 |
2013-07 | 571 | 2.07 |
2013-09 | 1120 | 4.06 |
2013-12 | 818 | 2.96 |
2014-01 | 695 | 2.52 |
2014-04 | 623 | 2.26 |