Jan ( N = 1160 )

Feb ( N = 1077 )

Mar ( N = 1199 )

Apr ( N = 963 )

May ( N = 1079 )

Jun ( N = 903 )

Jul ( N = 1028 )

Aug ( N = 932 )

Sep ( N = 1160 )

Oct ( N = 971 )

Nov ( N = 1160 )

Dec ( N = 945 )