In using transaction data to determine the current value of the subject property, it is important to recognize that general market conditions may have changed since a particular transaction occurred. Property A sold 12 months ago for $235,000 and Property B sold 18 months ago for $215,000. If the two properties are priced today at $239,500 and $222,300, respectively, what is the average monthly rate of increase that can be used to adjust comparable prices for changes in market conditions? 0.19% 0.32% 0.09% 0.17%