In Brazil, the reference base period for the CPI is 2000. By 2005, prices had risen by 51 percent since the base period. The inflation rate in Brazil in 2006 was 10 percent, and in 2007, the inflation rate was 9 percent. Calculate the CPI in Brazil in 2006 and 2007. Brazil’s CPI in 2008 was 173. Did Brazil’s inflation rate increase or decrease in 2008?