Jan ( N = 1640 )

Feb ( N = 1479 )

Mar ( N = 1636 )

Apr ( N = 1581 )

May ( N = 1629 )

Jun ( N = 1566 )

Jul ( N = 1643 )

Aug ( N = 865 )

Sep ( N = 1250 )

Oct ( N = 1222 )

Nov ( N = 1581 )

Dec ( N = 1640 )