CREATE TABLE "africa" (
  "rank" real,
  "country" text,
  "international_tourist_arrivals_2011" text,
  "international_tourist_arrivals_2010" text,
  "change_2010_to_2011" text,
  "change_2009_to_2010" text
);

Question: What are the changes from 2009 to 2010 in Tunisia?
SQL: SELECT "change_2009_to_2010" FROM "africa" WHERE "country"='Tunisia';

Question: What are the international tourist arrivals in 2010 where change from 2010 to 2011 is +11.2% ?
SQL: SELECT "international_tourist_arrivals_2010" FROM "africa" WHERE "change_2010_to_2011"='+11.2%';

Question: What are the changes (2010 to 2011) where the International Tourist Arrivals is 1.7 million?
SQL: SELECT "change_2010_to_2011" FROM "africa" WHERE "international_tourist_arrivals_2011"='1.7 million';

Question: What are the international tourist arrivals(2010) where change from 2009 to 2010 is +11.1%?
SQL: SELECT "international_tourist_arrivals_2010" FROM "africa" WHERE "change_2009_to_2010"='+11.1%';

Question: What are the International tourist arrivals (2010) where change from 2010 to 2011 is +15%
SQL: SELECT "international_tourist_arrivals_2010" FROM "africa" WHERE "change_2010_to_2011"='+15%';

Question: How many international tourist arrivals were in Senegal in 2011?
SQL: SELECT "international_tourist_arrivals_2011" FROM "africa" WHERE "country"='Senegal';