year | 2009 | 2010 | 2011 | 2012 | 2013 |
January | 340 | 320 | 293 | 423 | 437 |
February | 318 | 371 | 285 | 421 | 292 |
March | 368 | 375 | 296 | 412 | 208 |
April | 206 | 295 | 268 | 232 | 222 |
May | 156 | 172 | 183 | 206 | 145 |
June | 162 | 196 | 259 | 169 | 220 |
July | 149 | 165 | 305 | 168 | 205 |
August | 234 | 195 | 364 | 136 | 165 |
September | 160 | 307 | 424 | 194 | 370 |
October | 221 | 289 | 446 | 256 | 313 |
November | 355 | 331 | 383 | 335 | 423 |
December | 371 | 326 | 413 | 510 | 360 |