Jan ( N = 2351 )

Feb ( N = 2129 )

Mar ( N = 2276 )

Apr ( N = 2120 )

May ( N = 2168 )

Jun ( N = 770 )

Aug ( N = 884 )

Sep ( N = 2308 )

Oct ( N = 2387 )

Nov ( N = 2306 )

Dec ( N = 2305 )