Jan ( N = 264 )

Feb ( N = 756 )

Mar ( N = 829 )

Apr ( N = 519 )

May ( N = 813 )

Jun ( N = 809 )

Jul ( N = 509 )

Aug ( N = 837 )

Sep ( N = 809 )

Oct ( N = 817 )

Nov ( N = 680 )

Dec ( N = 834 )