Jan ( N = 2380 )

Feb ( N = 2175 )

Mar ( N = 1896 )

Apr ( N = 1924 )

May ( N = 2129 )

Jun ( N = 2310 )

Jul ( N = 2380 )

Aug ( N = 2377 )

Sep ( N = 2305 )

Oct ( N = 2386 )

Nov ( N = 2306 )

Dec ( N = 2385 )