Jan ( N = 315 )

Feb ( N = 312 )

Mar ( N = 395 )

Apr ( N = 386 )

May ( N = 390 )

Jun ( N = 307 )

Jul ( N = 398 )

Aug ( N = 391 )

Sep ( N = 327 )

Oct ( N = 367 )

Nov ( N = 228 )

Dec ( N = 250 )