Jan ( N = 2355 )

Feb ( N = 2102 )

Mar ( N = 2354 )

Apr ( N = 2280 )

May ( N = 2286 )

Jun ( N = 2279 )

Jul ( N = 2355 )

Aug ( N = 2354 )

Sep ( N = 2278 )

Oct ( N = 2354 )

Nov ( N = 2279 )

Dec ( N = 2356 )