Jan ( N = 2354 )

Feb ( N = 2137 )

Mar ( N = 2303 )

Apr ( N = 2259 )

May ( N = 2316 )

Jun ( N = 1415 )

Jul ( N = 1711 )

Aug ( N = 2079 )

Sep ( N = 1169 )

Oct ( N = 2029 )

Nov ( N = 2306 )

Dec ( N = 2305 )