Jan ( N = 1013 )

Feb ( N = 506 )

Mar ( N = 602 )

Apr ( N = 985 )

May ( N = 1023 )

Jun ( N = 957 )

Jul ( N = 671 )

Aug ( N = 1021 )

Sep ( N = 970 )

Oct ( N = 961 )

Nov ( N = 983 )

Dec ( N = 980 )