CREATE TABLE table_20139 ("Ecozone" TEXT, "Area  ( km\\u00b2 ) " FLOAT, "Percentage of total area" TEXT, "Percentage of land area" TEXT, "Percentage protected" TEXT)

What is the percentage of total area in the ecozone that the percentage of land area is 2.2?
SELECT "Percentage of total area" FROM table_20139 WHERE "Percentage of land area" = '2.2'
SELECT "Percentage of total area" FROM "table_20139" WHERE "Percentage of land area" = '2.2'