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 )