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 )