Jan ( N = 2353 )

Feb ( N = 2228 )

Mar ( N = 2387 )

Apr ( N = 2155 )

May ( N = 2380 )

Jun ( N = 2310 )

Jul ( N = 2201 )

Aug ( N = 2382 )

Sep ( N = 2304 )

Oct ( N = 1310 )

Nov ( N = 2001 )

Dec ( N = 2315 )