Jan ( N = 591 )

Mar ( N = 771 )

Apr ( N = 1028 )

May ( N = 1077 )

Jun ( N = 1093 )

Jul ( N = 1070 )

Aug ( N = 1089 )

Sep ( N = 1078 )

Oct ( N = 1095 )

Nov ( N = 935 )

Dec ( N = 836 )