Jan ( N = 86 )

Feb ( N = 97 )

Mar ( N = 244 )

Apr ( N = 189 )

May ( N = 242 )

Jun ( N = 198 )

Jul ( N = 218 )

Aug ( N = 206 )

Sep ( N = 231 )

Oct ( N = 231 )

Nov ( N = 239 )

Dec ( N = 245 )