Jan ( N = 1573 )

Feb ( N = 1534 )

Mar ( N = 1640 )

Apr ( N = 1593 )

May ( N = 1635 )

Jun ( N = 1471 )

Jul ( N = 1641 )

Aug ( N = 1643 )

Sep ( N = 1590 )

Oct ( N = 1499 )

Nov ( N = 1597 )

Dec ( N = 1643 )