The cols_move_to_start() function

Use countrypops to create a gt table. With the remaining columns, move the year column to the start of the column series with cols_move_to_start().

countrypops |>
  dplyr::select(-contains("code")) |>
  dplyr::filter(country_name == "Mongolia") |>
  tail(5) |>
  gt() |>
  cols_move_to_start(columns = year)
year country_name population
2017 Mongolia 3096030
2018 Mongolia 3163991
2019 Mongolia 3232430
2020 Mongolia 3294335
2021 Mongolia 3347782

Use countrypops to create a gt table. With the remaining columns, move year and population to the start.

countrypops |>
  dplyr::select(-contains("code")) |>
  dplyr::filter(country_name == "Mongolia") |>
  tail(5) |>
  gt() |>
  cols_move_to_start(columns = c(year, population))
year population country_name
2017 3096030 Mongolia
2018 3163991 Mongolia
2019 3232430 Mongolia
2020 3294335 Mongolia
2021 3347782 Mongolia