Jan ( N = 2372 )

Feb ( N = 2145 )

Mar ( N = 2370 )

Apr ( N = 2303 )

May ( N = 2253 )

Jun ( N = 2308 )

Jul ( N = 2295 )

Aug ( N = 2375 )

Sep ( N = 2297 )

Oct ( N = 2384 )

Nov ( N = 2244 )

Dec ( N = 2383 )