Jan ( N = 514 )

Feb ( N = 2104 )

Mar ( N = 2096 )

Apr ( N = 1872 )

May ( N = 1741 )

Jun ( N = 1600 )

Jul ( N = 1243 )

Aug ( N = 792 )

Sep ( N = 1509 )

Oct ( N = 2208 )

Nov ( N = 2108 )

Dec ( N = 2235 )