Jan ( N = 517 )

Feb ( N = 353 )

Mar ( N = 156 )

Apr ( N = 439 )

May ( N = 487 )

Jun ( N = 487 )

Jul ( N = 496 )

Aug ( N = 503 )

Sep ( N = 479 )

Oct ( N = 492 )

Nov ( N = 485 )

Dec ( N = 406 )