SDG 6.6.1 (UNEP/JRC): permanent water as a share of total area. Values are FIVE-YEAR WINDOW MEANS, not single years - 2001-2005 baseline and 2018-2022 current. pct_change follows the UNEP convention where POSITIVE MEANS LOSS, the opposite sign to the function's change_from_first.
country data_range data_year id iso3cd pct_change pct_totalland