Based on the data below for chocolate demand per week and using the na$$ve forecasting method, how much you should order for $5$ th week?

$\backslash$table$[[$Week$,$Time Series Value$],[1,23\mathrm{.}00],[2,16\mathrm{.}00],[3,14\mathrm{.}00],[4,15\mathrm{.}00]]$

Answer format: Number: Round to: $0$ decimal places.