Jan ( N = 1790 )

Feb ( N = 1874 )

Mar ( N = 2101 )

Apr ( N = 2128 )

May ( N = 2215 )

Jun ( N = 2279 )

Jul ( N = 2292 )

Aug ( N = 2350 )

Sep ( N = 1987 )

Oct ( N = 2071 )

Nov ( N = 1885 )

Dec ( N = 2028 )