Jan ( N = 1024 )

Feb ( N = 999 )

Mar ( N = 544 )

Apr ( N = 712 )

May ( N = 745 )

Jun ( N = 918 )

Jul ( N = 848 )

Aug ( N = 846 )

Sep ( N = 968 )

Oct ( N = 1004 )

Nov ( N = 1035 )

Dec ( N = 1084 )