Jan ( N = 1100 )

Feb ( N = 930 )

Mar ( N = 1157 )

Apr ( N = 1120 )

May ( N = 1157 )

Jun ( N = 1122 )

Jul ( N = 1162 )

Aug ( N = 1161 )

Sep ( N = 1144 )

Oct ( N = 1158 )

Nov ( N = 1134 )

Dec ( N = 1107 )