Use the information for Economy N in the table to answer the question below.

Year

CPI

$2018$

$804\mathrm{.}5$

$2019$

$824\mathrm{.}6$

$2020$

$834\mathrm{.}1$

$2021$

$849\mathrm{.}7$

$2022$

$873\mathrm{.}9$

Which year is the base year for this CPI information? $($Hint: Careful with this question. Remember a key observation about the base year.$)$

Group of answer choices

$2022$

None of the other answers listed is correct.

$2018$

$2019$