Jan ( N = 2340 )

Feb ( N = 2096 )

Mar ( N = 2355 )

Apr ( N = 2276 )

May ( N = 2356 )

Jun ( N = 2020 )

Jul ( N = 2346 )

Aug ( N = 2346 )

Sep ( N = 2197 )

Oct ( N = 2329 )

Nov ( N = 2267 )

Dec ( N = 2239 )