CREATE TABLE "norwegian_americans_by_state" (
  "state" text,
  "norwegian_americans_1980" real,
  "percent_1980" text,
  "norwegian_americans_1990" real,
  "percent_1990" text,
  "norwegian_americans_2000" real,
  "percent_2000" text,
  "norwegian_americans_2009" real,
  "percent_2009" text
);

Question: what are all the percent (1990) where state is united states
SQL: SELECT "percent_1990" FROM "norwegian_americans_by_state" WHERE "state"='United States';

Question: what is the total number of percent (2000) where percent (1980) is 3.4%
SQL: SELECT COUNT("percent_2000") FROM "norwegian_americans_by_state" WHERE "percent_1980"='3.4%';

Question: what are all the percent (1990) where state is mississippi
SQL: SELECT "percent_1990" FROM "norwegian_americans_by_state" WHERE "state"='Mississippi';

Question: what is the maximum norwegian americans (2000) where norwegian americans (1990) is 9170
SQL: SELECT MAX("norwegian_americans_2000") FROM "norwegian_americans_by_state" WHERE "norwegian_americans_1990"=9170;

Question: what is the minimum norwegian americans (1980) where state is rhode island
SQL: SELECT MIN("norwegian_americans_1980") FROM "norwegian_americans_by_state" WHERE "state"='Rhode Island';