Jan ( N = 1156 )

Feb ( N = 977 )

Mar ( N = 1100 )

Apr ( N = 1088 )

May ( N = 1144 )

Jun ( N = 1028 )

Jul ( N = 1159 )

Aug ( N = 991 )

Sep ( N = 1042 )

Oct ( N = 1082 )

Nov ( N = 1062 )

Dec ( N = 1105 )