The table below shows the annual return of Fidelity Government Money Market Fund $($SPXX$)$ and the S&P$500$ index fund $($SPY$)$ for the period of $2020-2023.$

$\backslash$table$[[,$Annual Percentage Change$],[$Year$,$SPXX$,$SPY$],[2020,0\mathrm{.}26\%,18\mathrm{.}40\%$