Jan ( N = 2842 )

Feb ( N = 2662 )

Mar ( N = 2845 )

Apr ( N = 2477 )

May ( N = 2832 )

Jun ( N = 2699 )

Jul ( N = 2828 )

Aug ( N = 2832 )

Sep ( N = 2751 )

Oct ( N = 2611 )

Nov ( N = 2534 )

Dec ( N = 2853 )