Jan ( N = 1047 )

Feb ( N = 877 )

Mar ( N = 1028 )

Apr ( N = 907 )

May ( N = 923 )

Jun ( N = 921 )

Jul ( N = 895 )

Aug ( N = 775 )

Sep ( N = 770 )

Oct ( N = 870 )

Nov ( N = 943 )

Dec ( N = 1000 )