1952

2078

49.04

11.73

37.31

35.47

1953

2283

53.42

12.49

40.93

36.70

1954

2176

51.88

12.74

39.14

36.30

1955

2247

53.15

13.30

39.85

37.17

1956

2262

53.93

13.50

40.43

37.32

1957

2369

56.80

14.09

42.71

40.24

1958

2359

56.89

14.60

42.29

41.58

1959

2340

56.57

14.59

41.98

38.29

1960

2339

57.13

13.91

43.22

40.85

1961

2430

60.34

15.79

44.55

41.17

1962

2317

57.83

16.18

41.65

38.92

1963

2325

58.76

16.81

41.94

42.07

1964

2364

59.51

17.47

42.04

48.49

1965

2411

61.20

17.58

43.62

46.66

1966

2433

62.26

19.28

42.98

47.40

1967

2504

64.47

19.30

45.17

55.52

1968

2545

64.85

20.52

44.33

54.37

1969

2639

69.06

21.20

47.86

55.80

1970

2662

72.17

23.32

48.85

63.52

1971

2674

72.42

23.87

48.55

64.13

1972

2737

74.61

24.79

49.82

68.79

1973

2754

73.68

25.67

48.01

72.01

1974

2780

74.24

24.73

49.51

66.70

1975

2772

74.70

24.56

50.14

67.51

1976

2771

75.90

26.70

49.20

73.39

1977

2805

76.59

28.68

47.91

77.50

1978

2822

76.95

29.75

47.20

81.27

1979

2845

78.72

31.85

46.87

84.31

1980

2850

79.36

33.24

46.12

85.63

1981

2765

76.43

32.33

44.10

85.53

1982

2802

78.19

33.57

44.62

90.39

1983

2793

79.16

33.39

43.77

93.12

1984

2593

78.84

35.81

43.03

80.84

1985

2612

81.18

37.25

43.93

83.40

1986

2725

84.21

37.87

46.34

92.33

1987

2809

89.47

41.10

48.36

96.99

1988

2822

88.31

40.30

48.01

98.55

1989

2876

90.70

43.29

46.98

105.72

1990

2909

92.85

44.62

48.23

109.62

1991

2929

91.71

43.81

47.90

114.35

1992

2947

94.07

46.23

47.84

115.22

1993

3005

97.54

49.17

48.37

120.62

1994

3058

96.73

47.29

49.44

124.97

1995

3058

98.48

47.75

50.73

126.15

1996

3054

98.55

48.72

49.84

126.66

1997

3135

101.76

51.43

50.33

130.99

1998

2974

95.93

50.49

45.43

121.04

1999

3048

98.01

51.78

46.22

127.07

2000

3022

96.71

50.58

46.13

123.66

2001

2877

92.42

47.83

44.60

117.14