Jan ( N = 2259 )

Feb ( N = 2064 )

Mar ( N = 2266 )

Apr ( N = 2143 )

May ( N = 2160 )

Jun ( N = 2058 )

Jul ( N = 1937 )

Aug ( N = 2277 )

Sep ( N = 2257 )

Oct ( N = 2332 )

Nov ( N = 2255 )

Dec ( N = 2347 )