Jan ( N = 501 )

Feb ( N = 1018 )

Mar ( N = 1033 )

May ( N = 1245 )

Jun ( N = 1874 )

Jul ( N = 1460 )

Aug ( N = 798 )

Sep ( N = 1649 )

Oct ( N = 1634 )

Nov ( N = 1610 )

Dec ( N = 886 )