Jan ( N = 2380 )

Feb ( N = 2059 )

Mar ( N = 2386 )

Apr ( N = 2283 )

May ( N = 2381 )

Jun ( N = 2225 )

Jul ( N = 2123 )

Aug ( N = 2358 )

Sep ( N = 2304 )

Oct ( N = 2370 )

Nov ( N = 2294 )

Dec ( N = 2310 )