Jan ( N = 572 )

Feb ( N = 947 )

Mar ( N = 1100 )

Apr ( N = 1064 )

May ( N = 1116 )

Jun ( N = 944 )

Jul ( N = 1002 )

Aug ( N = 1032 )

Sep ( N = 1048 )

Oct ( N = 1080 )

Nov ( N = 1059 )

Dec ( N = 1101 )