Jan ( N = 330 )

Feb ( N = 349 )

Mar ( N = 372 )

Apr ( N = 419 )

May ( N = 434 )

Jun ( N = 416 )

Jul ( N = 324 )

Aug ( N = 432 )

Sep ( N = 415 )

Oct ( N = 384 )

Nov ( N = 288 )

Dec ( N = 310 )