There is no Consumer Price Index (CPI) for Tucson.
“There is no consistent study of consumer prices for Tucson, and the study done for the Phoenix area isn't entirely comparable to the national survey.” There are CPIs for various cities in the United States. The closest thing to Tucson is the Bureau of Labor Statistics Pacific Cities and U.S. City Average Historical Series Internet site:
"Local Inflation Rate Elusive." Arizona Daily Star. January 14, 1998. Page A8.
Find the information you need by calling the library's Infoline at 520.791.4010 or by sending your question to Askalibrarian.