Jan ( N = 94 )

Feb ( N = 219 )

Mar ( N = 244 )

Apr ( N = 248 )

May ( N = 230 )

Jun ( N = 225 )

Jul ( N = 233 )

Aug ( N = 229 )

Sep ( N = 226 )

Oct ( N = 235 )

Nov ( N = 232 )

Dec ( N = 246 )