Jan ( N = 539 )

Feb ( N = 483 )

Mar ( N = 482 )

Apr ( N = 431 )

May ( N = 539 )

Jun ( N = 536 )

Jul ( N = 556 )

Aug ( N = 556 )

Sep ( N = 536 )

Oct ( N = 281 )

Nov ( N = 415 )

Dec ( N = 558 )