Data series 1, wow (Line).
Point 1, 1976, Y=39%.
Point 2, 1977, Y=40.4%.
Point 3, 1978, Y=41.4%.
Point 4, 1979, Y=41.1%.
Point 5, 1980, Y=42.9%.
Point 6, 1981, Y=43.7%.
Point 7, 1982, Y=45.2%.
Point 8, 1983, Y=45.8%.
Point 9, 1984, Y=47.3%.
Point 10, 1985, Y=47.4%.
Point 11, 1986, Y=45.1%.
Point 12, 1987, Y=44.2%.
Point 13, 1988, Y=42.2%.
Point 14, 1989, Y=40.2%.
Point 15, 1990, Y=40.1%.
Point 16, 1991, Y=38.7%.
Point 17, 1992, Y=40.3%.
Point 18, 1993, Y=40.2%.
Point 19, 1994, Y=40.1%.
Point 20, 1995, Y=42.5%.
Point 21, 1996, Y=42.2%.
Point 22, 1997, Y=43.5%.
Point 23, 1998, Y=45.3%.
Point 24, 1999, Y=44.4%.
Point 25, 2000, Y=45.6%.
Point 26, 2001, Y=47.8%.
Point 27, 2002, Y=47.4%.
Point 28, 2003, Y=45.9%.
Point 29, 2004, Y=47.6%.
Point 30, 2005, Y=46%.
Maximum Y=47.8% for 2001 and minimum Y=38.7% for 1991.
Data series 2, bow (Line).
Point 1, 1976, Y=4.1%.
Point 2, 1977, Y=3.7%.
Point 3, 1978, Y=3.7%.
Point 4, 1979, Y=3.9%.
Point 5, 1980, Y=3.7%.
Point 6, 1981, Y=3.9%.
Point 7, 1982, Y=3.9%.
Point 8, 1983, Y=4.1%.
Point 9, 1984, Y=4.2%.
Point 10, 1985, Y=4.9%.
Point 11, 1986, Y=4.6%.
Point 12, 1987, Y=4.7%.
Point 13, 1988, Y=4.8%.
Point 14, 1989, Y=5.4%.
Point 15, 1990, Y=4.4%.
Point 16, 1991, Y=5.3%.
Point 17, 1992, Y=5.8%.
Point 18, 1993, Y=6.3%.
Point 19, 1994, Y=5.9%.
Point 20, 1995, Y=5.8%.
Point 21, 1996, Y=6.3%.
Point 22, 1997, Y=6.6%.
Point 23, 1998, Y=5.7%.
Point 24, 1999, Y=6.3%.
Point 25, 2000, Y=6.5%.
Point 26, 2001, Y=6.8%.
Point 27, 2002, Y=6.7%.
Point 28, 2003, Y=6.8%.
Point 29, 2004, Y=6.5%.
Point 30, 2005, Y=6.8%.
Maximum Y=6.8% for 2001 and minimum Y=3.7% for 1977.
Data series 3, wob (Line).
Point 1, 1976, Y=1.5%.
Point 2, 1977, Y=2.3%.
Point 3, 1978, Y=1.5%.
Point 4, 1979, Y=2.1%.
Point 5, 1980, Y=1.8%.
Point 6, 1981, Y=2.2%.
Point 7, 1982, Y=2.1%.
Point 8, 1983, Y=2%.
Point 9, 1984, Y=2.3%.
Point 10, 1985, Y=2.7%.
Point 11, 1986, Y=2.2%.
Point 12, 1987, Y=2.6%.
Point 13, 1988, Y=2.4%.
Point 14, 1989, Y=2.9%.
Point 15, 1990, Y=2.5%.
Point 16, 1991, Y=2.9%.
Point 17, 1992, Y=2.6%.
Point 18, 1993, Y=2.6%.
Point 19, 1994, Y=2.9%.
Point 20, 1995, Y=3.1%.
Point 21, 1996, Y=2.8%.
Point 22, 1997, Y=2.8%.
Point 23, 1998, Y=3.3%.
Point 24, 1999, Y=2.7%.
Point 25, 2000, Y=2.8%.
Point 26, 2001, Y=2.7%.
Point 27, 2002, Y=3.2%.
Point 28, 2003, Y=3.7%.
Point 29, 2004, Y=3.3%.
Point 30, 2005, Y=3.4%.
Maximum Y=3.7% for 2003 and minimum Y=1.5% for 1976.
Data series 4, bob (Line).
Point 1, 1976, Y=54.4%.
Point 2, 1977, Y=52.4%.
Point 3, 1978, Y=52.5%.
Point 4, 1979, Y=51.9%.
Point 5, 1980, Y=50.7%.
Point 6, 1981, Y=49.5%.
Point 7, 1982, Y=47.5%.
Point 8, 1983, Y=46.9%.
Point 9, 1984, Y=44.8%.
Point 10, 1985, Y=44.1%.
Point 11, 1986, Y=46.5%.
Point 12, 1987, Y=47%.
Point 13, 1988, Y=49.1%.
Point 14, 1989, Y=50.2%.
Point 15, 1990, Y=51.8%.
Point 16, 1991, Y=51.8%.
Point 17, 1992, Y=50.2%.
Point 18, 1993, Y=49.8%.
Point 19, 1994, Y=50%.
Point 20, 1995, Y=47.1%.
Point 21, 1996, Y=47.2%.
Point 22, 1997, Y=45.4%.
Point 23, 1998, Y=44.3%.
Point 24, 1999, Y=44.6%.
Point 25, 2000, Y=43.6%.
Point 26, 2001, Y=41.4%.
Point 27, 2002, Y=40.8%.
Point 28, 2003, Y=42.4%.
Point 29, 2004, Y=41.2%.
Point 30, 2005, Y=42.3%.
Maximum Y=54.4% for 1976 and minimum Y=40.8% for 2002.
Data series 1, wow (Line).
Point 1, 1976, Y=44.6%.
Point 2, 1977, Y=45.1%.
Point 3, 1978, Y=45.4%.
Point 4, 1979, Y=43.2%.
Point 5, 1980, Y=43%.
Point 6, 1981, Y=41.9%.
Point 7, 1982, Y=42.9%.
Point 8, 1983, Y=45.4%.
Point 9, 1984, Y=48.9%.
Point 10, 1985, Y=43.6%.
Point 11, 1986, Y=45.6%.
Point 12, 1987, Y=44.9%.
Point 13, 1988, Y=42.3%.
Point 14, 1989, Y=40.6%.
Point 15, 1990, Y=42.6%.
Point 16, 1991, Y=35.1%.
Point 17, 1992, Y=32.9%.
Point 18, 1993, Y=33.6%.
Point 19, 1994, Y=33.3%.
Point 20, 1995, Y=38.6%.
Point 21, 1996, Y=39.2%.
Point 22, 1997, Y=38.2%.
Point 23, 1998, Y=44.2%.
Point 24, 1999, Y=43.8%.
Point 25, 2000, Y=41.2%.
Point 26, 2001, Y=42.9%.
Point 27, 2002, Y=40.7%.
Point 28, 2003, Y=39.9%.
Point 29, 2004, Y=41.9%.
Point 30, 2005, Y=43.7%.
Maximum Y=48.9% for 1984 and minimum Y=32.9% for 1992.
Data series 2, bow (Line).
Point 1, 1976, Y=18.5%.
Point 2, 1977, Y=18.9%.
Point 3, 1978, Y=19.1%.
Point 4, 1979, Y=20.6%.
Point 5, 1980, Y=20.7%.
Point 6, 1981, Y=20.5%.
Point 7, 1982, Y=19.1%.
Point 8, 1983, Y=19%.
Point 9, 1984, Y=17.7%.
Point 10, 1985, Y=19.7%.
Point 11, 1986, Y=18.3%.
Point 12, 1987, Y=18.7%.
Point 13, 1988, Y=20.2%.
Point 14, 1989, Y=19%.
Point 15, 1990, Y=18.9%.
Point 16, 1991, Y=17.9%.
Point 17, 1992, Y=21.1%.
Point 18, 1993, Y=20.8%.
Point 19, 1994, Y=20.9%.
Point 20, 1995, Y=17.1%.
Point 21, 1996, Y=18.5%.
Point 22, 1997, Y=18%.
Point 23, 1998, Y=17.5%.
Point 24, 1999, Y=19.6%.
Point 25, 2000, Y=17.4%.
Point 26, 2001, Y=16.4%.
Point 27, 2002, Y=15.4%.
Point 28, 2003, Y=18.2%.
Point 29, 2004, Y=17.7%.
Point 30, 2005, Y=17.7%.
Maximum Y=21.1% for 1992 and minimum Y=15.4% for 2002.
Data series 3, wob (Line).
Point 1, 1976, Y=4.7%.
Point 2, 1977, Y=5.6%.
Point 3, 1978, Y=3.6%.
Point 4, 1979, Y=4.9%.
Point 5, 1980, Y=5.1%.
Point 6, 1981, Y=4.6%.
Point 7, 1982, Y=5%.
Point 8, 1983, Y=4.1%.
Point 9, 1984, Y=4.5%.
Point 10, 1985, Y=4.9%.
Point 11, 1986, Y=5.1%.
Point 12, 1987, Y=6.2%.
Point 13, 1988, Y=5.1%.
Point 14, 1989, Y=5.4%.
Point 15, 1990, Y=6.4%.
Point 16, 1991, Y=5.4%.
Point 17, 1992, Y=4%.
Point 18, 1993, Y=4.4%.
Point 19, 1994, Y=4.9%.
Point 20, 1995, Y=5.8%.
Point 21, 1996, Y=6.6%.
Point 22, 1997, Y=4.9%.
Point 23, 1998, Y=5.3%.
Point 24, 1999, Y=5.1%.
Point 25, 2000, Y=5%.
Point 26, 2001, Y=5.1%.
Point 27, 2002, Y=4.8%.
Point 28, 2003, Y=4.8%.
Point 29, 2004, Y=6.6%.
Point 30, 2005, Y=4.5%.
Maximum Y=6.6% for 1996 and minimum Y=3.6% for 1978.
Data series 4, bob (Line).
Point 1, 1976, Y=30.8%.
Point 2, 1977, Y=28.8%.
Point 3, 1978, Y=30.6%.
Point 4, 1979, Y=29.7%.
Point 5, 1980, Y=30.2%.
Point 6, 1981, Y=31.9%.
Point 7, 1982, Y=31.9%.
Point 8, 1983, Y=30%.
Point 9, 1984, Y=27.6%.
Point 10, 1985, Y=30.1%.
Point 11, 1986, Y=30.1%.
Point 12, 1987, Y=29.5%.
Point 13, 1988, Y=31.4%.
Point 14, 1989, Y=33.9%.
Point 15, 1990, Y=31%.
Point 16, 1991, Y=40.5%.
Point 17, 1992, Y=40.9%.
Point 18, 1993, Y=40.2%.
Point 19, 1994, Y=39.5%.
Point 20, 1995, Y=36.9%.
Point 21, 1996, Y=34.7%.
Point 22, 1997, Y=37.7%.
Point 23, 1998, Y=31.3%.
Point 24, 1999, Y=30.5%.
Point 25, 2000, Y=35%.
Point 26, 2001, Y=34.2%.
Point 27, 2002, Y=37.6%.
Point 28, 2003, Y=35.8%.
Point 29, 2004, Y=32.4%.
Point 30, 2005, Y=32.3%.
Maximum Y=40.9% for 1992 and minimum Y=27.6% for 1984.
Line 1, White on white.
Point 1, is 46.
Line 2, Black on black.
Point 1, is 42.3.
Line 3, Black on white.
Point 1, is 6.
Line 4, White on black.
Point 1, is 2.
Line 1, White on white.
Point 1, is 44.
Line 2, Black on black.
Point 1, is 33.
Line 3, Black on white.
Point 1, is 18.
Line 4, White on black.
Point 1, is 4.5.