Jan ( N = 432 )

Feb ( N = 392 )

Mar ( N = 434 )

Apr ( N = 414 )

May ( N = 416 )

Jun ( N = 419 )

Jul ( N = 422 )

Aug ( N = 427 )

Sep ( N = 419 )

Oct ( N = 431 )

Nov ( N = 410 )

Dec ( N = 434 )