Jan ( N = 1006 )

Feb ( N = 985 )

Mar ( N = 1023 )

Apr ( N = 952 )

May ( N = 1054 )

Jun ( N = 1015 )

Jul ( N = 1045 )

Aug ( N = 1054 )

Sep ( N = 1010 )

Oct ( N = 1042 )

Nov ( N = 955 )

Dec ( N = 956 )