Jan ( N = 49 )

Feb ( N = 44 )

Mar ( N = 1 )

Apr ( N = 8 )

May ( N = 587 )

Jun ( N = 958 )

Jul ( N = 968 )

Aug ( N = 985 )

Sep ( N = 942 )

Oct ( N = 995 )

Nov ( N = 1127 )

Dec ( N = 1179 )