CREATE TABLE table_16048129_5 (_percentage_of_total_deportees VARCHAR2, average_family_size VARCHAR2)

What is the total number of regions where the average family size is 2.8?
SELECT COUNT(_percentage_of_total_deportees) FROM table_16048129_5 WHERE average_family_size = "2.8"
SELECT COUNT("_percentage_of_total_deportees") FROM "table_16048129_5" WHERE "2.8" = "average_family_size"