Jan ( N = 2355 )

Feb ( N = 2123 )

Mar ( N = 2347 )

Apr ( N = 2256 )

May ( N = 1799 )

Jun ( N = 2248 )

Jul ( N = 2354 )

Aug ( N = 2332 )

Sep ( N = 2278 )

Oct ( N = 2340 )

Nov ( N = 2264 )

Dec ( N = 2348 )