Jan ( N = 82 )

Feb ( N = 83 )

Mar ( N = 246 )

Apr ( N = 178 )

May ( N = 241 )

Jun ( N = 197 )

Jul ( N = 216 )

Aug ( N = 205 )

Sep ( N = 230 )

Oct ( N = 232 )

Nov ( N = 239 )

Dec ( N = 245 )