Jan ( N = 47 )

Feb ( N = 435 )

Mar ( N = 1953 )

Apr ( N = 2297 )

May ( N = 2384 )

Jun ( N = 2270 )

Jul ( N = 2357 )

Aug ( N = 2361 )

Sep ( N = 2289 )

Oct ( N = 2283 )

Nov ( N = 2209 )

Dec ( N = 1782 )