Jan ( N = 2387 )

Feb ( N = 2229 )

Mar ( N = 2190 )

Apr ( N = 2064 )

May ( N = 2361 )

Jun ( N = 2303 )

Jul ( N = 2370 )

Aug ( N = 2387 )

Sep ( N = 2282 )

Oct ( N = 2380 )

Nov ( N = 2310 )

Dec ( N = 2387 )