Jan ( N = 220 )

Feb ( N = 219 )

Mar ( N = 197 )

Apr ( N = 152 )

May ( N = 207 )

Jun ( N = 132 )

Jul ( N = 121 )

Aug ( N = 250 )

Sep ( N = 201 )

Oct ( N = 185 )

Nov ( N = 231 )

Dec ( N = 256 )