Jan ( N = 971 )

Feb ( N = 835 )

Mar ( N = 1014 )

Apr ( N = 928 )

May ( N = 828 )

Jun ( N = 746 )

Jul ( N = 948 )

Aug ( N = 1039 )

Sep ( N = 504 )

Jan ( N = 756 )

Feb ( N = 775 )

Mar ( N = 748 )

Apr ( N = 776 )

May ( N = 1038 )

Jun ( N = 924 )

Jul ( N = 934 )

Aug ( N = 672 )

Sep ( N = 947 )

Oct ( N = 923 )

Nov ( N = 1019 )

Dec ( N = 1066 )

Jul ( N = None )

Aug ( N = 391 )

Sep ( N = 982 )

Oct ( N = 804 )

Nov ( N = 925 )

Dec ( N = 857 )