CREATE TABLE table_20506 ("Region of USSR" CLOB, "Number of families" FLOAT, "Number of people" FLOAT, "Average family size" CLOB, "% of total deportees" CLOB)

What is the total number of regions where the average family size is 2.8?
SELECT COUNT("% of total deportees") FROM table_20506 WHERE "Average family size" = '2.8'
SELECT COUNT("% of total deportees") FROM "table_20506" WHERE "Average family size" = '2.8'