Question: In what region was the change in % of the country's population since 1993 at 0.3? 
SQL: SELECT "Region" FROM "1-2637317-1" WHERE "Change in % of countrys population since 1993" = '0.3';

Question: What is the change in population since 1993 in the region where the % of country's population was 4.2? 
SQL: SELECT COUNT("Change in population since 1993") FROM "1-2637317-1" WHERE "% of countrys population" = '4.2';

Question: What is the change in % of the country's population since 1993 in the Lambayeque region?
SQL: SELECT "Change in % of countrys population since 1993" FROM "1-2637317-1" WHERE "Region" = 'Lambayeque';