Jan ( N = 2249 )

Feb ( N = 1970 )

Mar ( N = 2193 )

Apr ( N = 2090 )

May ( N = 2046 )

Jun ( N = 1865 )

Jul ( N = 2079 )

Aug ( N = 2121 )

Sep ( N = 2201 )

Oct ( N = 2225 )

Nov ( N = 2158 )

Dec ( N = 2253 )