1947

1948

1949

1950

1951

1952

1953

1954

1955

1956

1957

1958

1959

1960

1961

1962

1963

1964

1965

1966

1967

1968

1969

1970

1971

1972

1973

1974

1975

1976

1977

1978

1979

1980

501

869

1,129

661

162

577

867

889

1,308

1,815

2,441

2,671

4,136

5,350

5,884

7,444

8,844

9,615

10,248

11,613

12,436

10,242

10,273

12,394

12,785

12,403

13,571

15,263

17,593

16,427

17,268

18,054

18,208

18,624

-

-

-

-

93

305

351

406

562

847

1,024

1,375

2,349

2,909

4,076

4,953

5,953

6,335

7,118

8,466

8,680

7,656

9,194

9,910

10,115

10,555

13,017

13,657

13,612

14,670

16,047

16,526

16,942

18,037

-

-

-

-

50

205

251

316

477

674

724

593

544

779

784

755

848

1,368

1,568

1,346

1,448

1,486

989

574

626

884

686

426

1,349

1,244

800

518

1,064

1,865

-

-

-

-

16

83

321

347

456

332

471

532

976

1134

1168

1508

1816

1725

1660

1957

1828

1427

1176

1347

1250

924

1033

876

983

868

957

909

814

928

-

-

-

-

159

593

923

1,069

1,495

1,853

2,219

2,500

3,869

4,822

6,028

7,216

8,617

9,428

10,346

11,769

11,956

10,569

11,359

11,831

11,991

12,363

14,736

14,959

15,944

16,782

17,804

17,953

18,820

20,830