year

Y

K

L

year

Y

K

L

1955

33.2

33.8

79.9

1965

100

101

99

1956

38.2

37.6

84.5

1966

109.6

110.6

99.5

1957

42.6

42.4

87.6

1967

120.3

123.9

102.2

1958

47.4

47.0

91.4

1968

131.2

138.1

106.4

1959

53.5

52.2

95.8

1969

141.8

154.3

110.9

1960

60.3

58.6

97.6

1970

153.4

170.4

115.7

1961

66.3

65.6

96.3

1971

167.1

186.1

118.7

1962

79.0

72.5

96.6

1972

183.6

201.7

122.6

1963

81.3

80.4

99.1

1973

199.9

217.7

126.6

1964

90.6

89.7

100.7

1974

215.2

235.1

130.6