1948

672

1949

679

1950

779

1951

875

1952

882

1953

866

1954

880

1955

1,129

1956

1,443

1957

1,607

1958

2,155

1959

2,985

1960

3,007

1961

2,945

1962

3,301

1963

3,377

1964

3,618

1965

4,159

1966

3,746

1967

4,532

1968

4,413

1969

4,199

1970

4,919

1971

5,061

1972

4,902

1973

5,047

1974

5,447

1975

5,123

1976

5,994

1977

6,039

1978

6,452

1979

6,881

1980

7,223

1981

7,239

1982

7,930

1983

8,602

1984

10,235

1985

10,085

1986

10,740

1987

10,129

1988

10,687

1989

11,158

1990

11,191

1991

11,871

1992

11,088

1993

10,993

1994

12,244

1995

10,957

1996

12,248

1997

13,497

1998

13,034

1999

12,686

2000

12,164

2001

13,725

2002

12,736

2003

13,718

2004

14,096

2005

13,799