Since 2005, the index has grown at an average annual compound rate of 8.4 percent.

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But further price increases seem unlikely given the city has half the median income and three times the poverty rate of the national average and the most recent purchasing managers index showing a big slowdown.

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The average duration in the index is 26 years, which means it is super sensitive to interest rate changes.

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For example, the current reported inflation rate is only 1.6% (compared to a long-term average of about 3%), but this rate is depressed due to the 40% weight in the Consumer Price Index from housing.

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