Jan ( N = 992 )

Feb ( N = 928 )

Mar ( N = 991 )

Apr ( N = 960 )

May ( N = 979 )

Jun ( N = 952 )

Jul ( N = 992 )

Aug ( N = 989 )

Sep ( N = 947 )

Oct ( N = 986 )

Nov ( N = 959 )

Dec ( N = 991 )