Jan ( N = 1031 )

Feb ( N = 1067 )

Mar ( N = 1153 )

Apr ( N = 1064 )

May ( N = 1133 )

Jun ( N = 1029 )

Jul ( N = 718 )

Aug ( N = 840 )

Sep ( N = 876 )

Oct ( N = 812 )

Nov ( N = 1061 )

Dec ( N = 1141 )