CREATE TABLE table_74102 ("Status" TEXT, "2001 number  (  , 000 ) " FLOAT, "2001 %" TEXT, "2011 number  (  , 000 ) " FLOAT, "2011 %" TEXT)

How many 2011 % is 7.9?
SELECT COUNT("2001 number (,000)") FROM table_74102 WHERE "2011 %" = '7.9'
SELECT COUNT("2001 number (,000)") FROM "table_74102" WHERE "2011 %" = '7.9'