The table below shows the Consumer Price Index (CPI) of an economy over a four-year period:
YearConsumer Price Index (CPI)1100211031154112 \begin{array}{|c|c|} \hline \text{Year} & \text{Consumer Price Index (CPI)} \\ \hline 1 & 100 \\ 2 & 110 \\ 3 & 115 \\ 4 & 112 \\ \hline \end{array} Year1234Consumer Price Index (CPI)100110115112Which one of the following statements is correct?
Between Year 3 and Year 4, the economy experienced disinflation.
Between Year 2 and Year 3, the economy experienced disinflation.
The purchasing power of the currency was higher in Year 3 than in Year 2.
Between Year 2 and Year 3, the economy experienced deflation.