Jan ( N = 1055 )

Feb ( N = 956 )

Mar ( N = 1056 )

Apr ( N = 1020 )

May ( N = 1052 )

Jun ( N = 1018 )

Jul ( N = 1051 )

Aug ( N = 1048 )

Sep ( N = 1014 )

Oct ( N = 1052 )

Nov ( N = 1015 )

Dec ( N = 1049 )