1951 9 +80.0% — 86% 720.8K 39 20 #17,939 ▲4.2K 1952 9 -50.0% — 89% 492.4K 314 18 #22,989 ▼3.2K 1953 9 -30.8% — 63% 2.43M 1.1K 15 #24,012 ▲3.5K 1954 9 -30.8% — 43% 4.8M 107 23 #19,404 ▼3.7K 1955 9 -50.0% — 90% 2.09M 2.2K 12 #18,398 ▼2.2K 1956 9 +125.0% — 85% 1.9K — — #30,412 – 1957 9 -35.7% — 84% 1.48M 146 9 #15,664 ▲6.4K 1958 9 +0.0% — 75% 11.3M 113 17 #16,347 ▲1.1K 1959 9 +200.0% — 86% 5.9M 12 3 #25,181 ▲172 1960 9 — — — 5.8K — — #30,412 ▼9.6K 1961 9 +0.0% — 85% 1.03M 110 17 #22,170 ▲1.4K 1962 9 — — 76% 35.6K — — #25,181 ▼6.3K 1963 9 +50.0% — 92% 3.34M 1.4K 23 #22,170 ▼4.1K 1964 9 +0.0% — — 22.3K — — #22,989 – 1965 9 -10.0% — 94% 10.2K — — #22,989 ▲4.6K 1966 9 -18.2% — 79% 61.6K 105 28 #17,148 ▲2.6K 1967 9 -35.7% — 65% 645.9K 1K 69 #18,868 ▼3.6K 1968 9 -25.0% — 76% 615.5K 37 14 #16,745 ▲34 1969 9 +800.0% — 61% 10M 22 8 #21,357 ▲741 1970 9 -10.0% — 77% 7.1M 52 15 #15,664 ▼1.8K 1971 9 +80.0% — — 12.4K — — #16,745 – 1972 9 +80.0% — 70% 2.02M 86 13 #20,659 ▲202 1973 9 +12.5% — 63% 3.7M — 1 #25,181 ▼1.6K 1974 9 +28.6% — 59% 1.62M 128 14 #20,659 ▼4.5K 1975 9 +12.5% — 81% 2.49M 131 32 #16,745 ▼4K 1976 9 -47.1% — 84% 2.47M 1.5K 60 #18,398 ▼4.2K 1977 9 +0.0% — 47% 38K — — #20,659 – 1978 9 +350.0% — 68% 1.76M 158 11 #20,659 ▲6.9K 1979 9 -18.2% — 72% 51.8K 112 28 #13,999 ▲1.7K 1980 9 -40.0% — 96% 319.9K 264 65 #8,442 ▼2.5K 1981 9 -40.0% — 86% 18.42M 55 14 #16,008 ▼2.5K 1982 9 -10.0% — 75% 6.39M 37 13 #16,008 ▼2.8K 1983 9 -10.0% — 74% 193.8K 142 39 #18,868 ▲910 1984 9 +50.0% — 58% 1.41M 84 7 #25,181 ▼3.1K 1985 9 — — 85% 2.28M 321 31 #21,357 ▲6.2K 1986 9 -40.0% — 58% 3.03M 91 19 #18,398 ▲2.5K 1987 9 -59.1% — — 10.6K 54 13 #12,861 ▲4.6K 1988 9 +0.0% — 74% 2.74M 26 10 #22,170 ▲3.2K 1989 9 +0.0% — — 7.5K — — #17,148 ▲10.4K 1990 9 -30.8% — 57% 3.08M 72 20 #10,214 ▲3.6K 1991 9 +0.0% — 65% 2.62M 1.5K 581 #17,148 ▲282 1992 9 -18.2% — 80% 2.21M 50 12 #24,012 ▼1.9K 1993 9 +0.0% — 74% 3.5M 301 27 #20,659 ▼7.9K 1994 9 +350.0% — 77% 3.18M 18 6 #20,659 ▼1.8K 1995 9 +200.0% — 60% 2.29M 100 19 #28,545 ▼7.7K 1996 9 -50.0% — 88% 5.68M 87 16 #18,868 ▼2.7K 1997 9 -10.0% — 60% 93.9K 51 11 #17,939 ▼509 1998 9 -10.0% — 82% 3.58M 131 9 #24,012 ▼3.2K 1999 9 +125.0% — 68% 1.51M 240 28 #15,664 ▲5.2K 2000 9 +12.5% — 84% 102.2M 56 13 #17,526 ▼1.8K