Jan ( N = 514 )

Feb ( N = 525 )

Mar ( N = 648 )

Apr ( N = 741 )

May ( N = 842 )

Jun ( N = 490 )

Jul ( N = 367 )

Aug ( N = 420 )

Sep ( N = 564 )

Oct ( N = 601 )

Nov ( N = 524 )

Dec ( N = 509 )