Jan ( N = 227 )
Feb ( N = 304 )
Mar ( N = 293 )
Apr ( N = 287 )
May ( N = 313 )
Jun ( N = 327 )
Jul ( N = 309 )
Aug ( N = 291 )
Sep ( N = 272 )
Oct ( N = 338 )
Nov ( N = 326 )
Dec ( N = 341 )