Jan ( N = 581 )

Feb ( N = 2166 )

Mar ( N = 2306 )

Apr ( N = 2226 )

May ( N = 1901 )

Jun ( N = 1911 )

Jul ( N = 1229 )

Aug ( N = 1741 )

Sep ( N = 2233 )

Oct ( N = 2376 )

Nov ( N = 2295 )

Dec ( N = 2332 )