Jan ( N = 227 )
Feb ( N = 303 )
Mar ( N = 293 )
Apr ( N = 286 )
May ( N = 312 )
Jun ( N = 327 )
Jul ( N = 309 )
Aug ( N = 291 )
Sep ( N = 272 )
Oct ( N = 339 )
Nov ( N = 325 )
Dec ( N = 341 )