Jan ( N = 2274 )

Feb ( N = 2058 )

Mar ( N = 2236 )

Apr ( N = 2146 )

May ( N = 2169 )

Jun ( N = 2075 )

Jul ( N = 1924 )

Aug ( N = 2277 )

Sep ( N = 2251 )

Oct ( N = 2333 )

Nov ( N = 2265 )

Dec ( N = 2343 )