Jan ( N = 4 )

Feb ( N = 15 )

Mar ( N = 977 )

Apr ( N = 925 )

May ( N = 653 )

Jun ( N = 876 )

Jul ( N = 728 )

Aug ( N = 674 )

Sep ( N = 653 )

Oct ( N = 752 )

Nov ( N = 714 )

Dec ( N = 853 )