Jan ( N = 2337 )

Feb ( N = 1985 )

Mar ( N = 2341 )

Apr ( N = 2241 )

May ( N = 2179 )

Jun ( N = 2243 )

Jul ( N = 2251 )

Aug ( N = 2025 )

Sep ( N = 2223 )

Oct ( N = 2312 )

Nov ( N = 2182 )

Dec ( N = 2361 )