Jan ( N = 1142 )

Feb ( N = 976 )

Mar ( N = 1128 )

Apr ( N = 1103 )

May ( N = 1112 )

Jun ( N = 991 )

Jul ( N = 1137 )

Aug ( N = 1140 )

Sep ( N = 1079 )

Oct ( N = 1133 )

Nov ( N = 1108 )

Dec ( N = 1152 )