Jan ( N = 2355 )

Feb ( N = 2015 )

Mar ( N = 2100 )

Apr ( N = 1574 )

May ( N = 1687 )

Jun ( N = 880 )

Jul ( N = 1746 )

Aug ( N = 2176 )

Sep ( N = 2058 )

Oct ( N = 2046 )

Nov ( N = 2305 )

Dec ( N = 2304 )