Jan ( N = 2300 )

Feb ( N = 2132 )

Mar ( N = 1744 )

Apr ( N = 1604 )

May ( N = 2033 )

Jun ( N = 2305 )

Jul ( N = 2379 )

Aug ( N = 2378 )

Sep ( N = 2303 )

Oct ( N = 2384 )

Nov ( N = 2305 )

Dec ( N = 2385 )