### Database Schema
CREATE TABLE "circuits" (
"circuitId" INTEGER PRIMARY KEY,
  "circuitRef" TEXT,
  "name" TEXT,
  "location" TEXT,
  "country" TEXT,
  "lat" REAL,
  "lng" REAL,
  "alt" TEXT,
  "url" TEXT
)

CREATE TABLE "races" (
"raceId" INTEGER PRIMARY KEY,
  "year" INTEGER,
  "round" INTEGER,
  "circuitId" INTEGER,
  "name" TEXT,
  "date" TEXT,
  "time" TEXT,
  "url" TEXT,
  FOREIGN KEY ("circuitId") REFERENCES "circuits"("circuitId")
)

CREATE TABLE "drivers" (
"driverId" INTEGER PRIMARY KEY,
  "driverRef" TEXT,
  "number" TEXT,
  "code" TEXT,
  "forename" TEXT,
  "surname" TEXT,
  "dob" TEXT,
  "nationality" TEXT,
  "url" TEXT
)

CREATE TABLE "status" (
"statusId" INTEGER PRIMARY KEY,
  "status" TEXT
)

CREATE TABLE "seasons" (
"year" INTEGER PRIMARY KEY,
  "url" TEXT
)

CREATE TABLE "constructors" (
	"constructorId" INTEGER PRIMARY KEY,
  "constructorRef" TEXT,
  "name" TEXT,
  "nationality" TEXT,
  "url" TEXT
)

CREATE TABLE "constructorStandings" (
	"constructorStandingsId" INTEGER PRIMARY KEY,
  "raceId" INTEGER,
  "constructorId" INTEGER,
  "points" REAL,
  "position" INTEGER,
  "positionText" TEXT,
  "wins" INTEGER,
  FOREIGN KEY("constructorId") REFERENCES "constructors"("constructorId"),
  FOREIGN KEY("raceId") REFERENCES "races"("raceId")
)

CREATE TABLE "results" (
"resultId" INTEGER PRIMARY KEY,
  "raceId" INTEGER,
  "driverId" INTEGER,
  "constructorId" INTEGER,
  "number" INTEGER,
  "grid" INTEGER,
  "position" TEXT,
  "positionText" TEXT,
  "positionOrder" INTEGER,
  "points" REAL,
  "laps" TEXT,
  "time" TEXT,
  "milliseconds" TEXT,
  "fastestLap" TEXT,
  "rank" TEXT,
  "fastestLapTime" TEXT,
  "fastestLapSpeed" TEXT,
  "statusId" INTEGER,
  FOREIGN KEY("constructorId") REFERENCES "constructors"("constructorId"),
  FOREIGN KEY("raceId") REFERENCES "races"("raceId"),
  FOREIGN KEY ("driverId") REFERENCES "drivers"("driverId")
)

CREATE TABLE "driverStandings" (
"driverStandingsId" INTEGER PRIMARY KEY,
  "raceId" INTEGER,
  "driverId" INTEGER,
  "points" REAL,
  "position" INTEGER,
  "positionText" TEXT,
  "wins" INTEGER,
  FOREIGN KEY("raceId") REFERENCES "races"("raceId"),
  FOREIGN KEY ("driverId") REFERENCES "drivers"("driverId")
)

CREATE TABLE "constructorResults" (
"constructorResultsId" INTEGER PRIMARY KEY,
  "raceId" INTEGER,
  "constructorId" INTEGER,
  "points" REAL,
  "status" TEXT,
  FOREIGN KEY("constructorId") REFERENCES "constructors"("constructorId"),
  FOREIGN KEY("raceId") REFERENCES "races"("raceId")
)

CREATE TABLE "qualifying" (
"qualifyId" INTEGER PRIMARY KEY,
  "raceId" INTEGER,
  "driverId" INTEGER,
  "constructorId" INTEGER,
  "number" INTEGER,
  "position" INTEGER,
  "q1" TEXT,
  "q2" TEXT,
  "q3" TEXT,
  FOREIGN KEY("constructorId") REFERENCES "constructors"("constructorId"),
  FOREIGN KEY("raceId") REFERENCES "races"("raceId"),
  FOREIGN KEY ("driverId") REFERENCES "drivers"("driverId")
)

CREATE TABLE "pitStops" (
"raceId" INTEGER,
  "driverId" INTEGER,
  "stop" INTEGER,
  "lap" INTEGER,
  "time" TEXT,
  "duration" TEXT,
  "milliseconds" INTEGER,
  PRIMARY KEY ("raceId", "driverId", "stop"),
  FOREIGN KEY("raceId") REFERENCES "races"("raceId"),
  FOREIGN KEY ("driverId") REFERENCES "drivers"("driverId")
)

CREATE TABLE "lapTimes" (
"raceId" INTEGER,
  "driverId" INTEGER,
  "lap" INTEGER,
  "position" INTEGER,
  "time" TEXT,
  "milliseconds" INTEGER,
  PRIMARY KEY("raceId", "driverId", "lap"),
  FOREIGN KEY("raceId") REFERENCES "races"("raceId"),
  FOREIGN KEY ("driverId") REFERENCES "drivers"("driverId")
)

### Question
What are the numbers of constructors for different nationalities?

### SQL
SELECT count(*) ,  nationality FROM constructors GROUP BY nationality