March 31, 2007 |1975Q1| 61.64 March 31, 2007 |1975Q2| 62.74 March 31, 2007 |1975Q3| 62.36 March 31, 2007 |1975Q4| 63.34 March 31, 2007 |1976Q1| 64.47 March 31, 2007 |1976Q2| 66.28 March 31, 2007 |1976Q3| 66.93 March 31, 2007 |1976Q4| 68.09 March 31, 2007 |1977Q1| 70.19 March 31, 2007 |1977Q2| 72.73 March 31, 2007 |1977Q3| 74.77 March 31, 2007 |1977Q4| 77.19 March 31, 2007 |1978Q1| 79.65 March 31, 2007 |1978Q2| 82.52 March 31, 2007 |1978Q3| 85.04 March 31, 2007 |1978Q4| 87.61 March 31, 2007 |1979Q1| 91.44 March 31, 2007 |1979Q2| 94.06 March 31, 2007 |1979Q3| 96.09 March 31, 2007 |1979Q4| 97.93 March 31, 2007 |1980Q1|100.00 March 31, 2007 |1980Q2|101.02 March 31, 2007 |1980Q3|104.26 March 31, 2007 |1980Q4|104.69 March 31, 2007 |1981Q1|105.77 March 31, 2007 |1981Q2|107.86 March 31, 2007 |1981Q3|109.29 March 31, 2007 |1981Q4|109.67 March 31, 2007 |1982Q1|111.03 March 31, 2007 |1982Q2|111.69 March 31, 2007 |1982Q3|111.24 March 31, 2007 |1982Q4|112.17 March 31, 2007 |1983Q1|114.10 March 31, 2007 |1983Q2|115.29 March 31, 2007 |1983Q3|116.14 March 31, 2007 |1983Q4|116.50 March 31, 2007 |1984Q1|118.33 March 31, 2007 |1984Q2|120.32 March 31, 2007 |1984Q3|121.52 March 31, 2007 |1984Q4|122.87 March 31, 2007 |1985Q1|124.67 March 31, 2007 |1985Q2|126.75 March 31, 2007 |1985Q3|129.09 March 31, 2007 |1985Q4|130.87 March 31, 2007 |1986Q1|133.46 March 31, 2007 |1986Q2|136.40 March 31, 2007 |1986Q3|138.97 March 31, 2007 |1986Q4|141.55 March 31, 2007 |1987Q1|144.65 March 31, 2007 |1987Q2|147.43 March 31, 2007 |1987Q3|149.77 March 31, 2007 |1987Q4|151.16 March 31, 2007 |1988Q1|153.84 March 31, 2007 |1988Q2|157.13 March 31, 2007 |1988Q3|158.87 March 31, 2007 |1988Q4|160.54 March 31, 2007 |1989Q1|162.69 March 31, 2007 |1989Q2|164.84 March 31, 2007 |1989Q3|168.64 March 31, 2007 |1989Q4|170.24 March 31, 2007 |1990Q1|170.95 March 31, 2007 |1990Q2|170.89 March 31, 2007 |1990Q3|171.50 March 31, 2007 |1990Q4|170.68 March 31, 2007 |1991Q1|171.98 March 31, 2007 |1991Q2|172.75 March 31, 2007 |1991Q3|172.73 March 31, 2007 |1991Q4|175.11 March 31, 2007 |1992Q1|176.26 March 31, 2007 |1992Q2|175.88 March 31, 2007 |1992Q3|177.64 March 31, 2007 |1992Q4|178.39 March 31, 2007 |1993Q1|178.12 March 31, 2007 |1993Q2|179.62 March 31, 2007 |1993Q3|180.69 March 31, 2007 |1993Q4|182.08 March 31, 2007 |1994Q1|182.92 March 31, 2007 |1994Q2|183.52 March 31, 2007 |1994Q3|184.04 March 31, 2007 |1994Q4|183.58 March 31, 2007 |1995Q1|184.26 March 31, 2007 |1995Q2|187.49 March 31, 2007 |1995Q3|190.38 March 31, 2007 |1995Q4|191.87 March 31, 2007 |1996Q1|194.21 March 31, 2007 |1996Q2|194.43 March 31, 2007 |1996Q3|195.18 March 31, 2007 |1996Q4|196.88 March 31, 2007 |1997Q1|198.67 March 31, 2007 |1997Q2|200.27 March 31, 2007 |1997Q3|203.23 March 31, 2007 |1997Q4|205.87 March 31, 2007 |1998Q1|209.01 March 31, 2007 |1998Q2|210.65 March 31, 2007 |1998Q3|213.56 March 31, 2007 |1998Q4|216.13 March 31, 2007 |1999Q1|218.30 March 31, 2007 |1999Q2|221.23 March 31, 2007 |1999Q3|224.64 March 31, 2007 |1999Q4|227.15 March 31, 2007 |2000Q1|231.85 March 31, 2007 |2000Q2|235.77 March 31, 2007 |2000Q3|240.33 March 31, 2007 |2000Q4|244.27 March 31, 2007 |2001Q1|250.59 March 31, 2007 |2001Q2|255.04 March 31, 2007 |2001Q3|259.26 March 31, 2007 |2001Q4|262.65 March 31, 2007 |2002Q1|266.89 March 31, 2007 |2002Q2|271.84 March 31, 2007 |2002Q3|277.73 March 31, 2007 |2002Q4|282.09 March 31, 2007 |2003Q1|285.83 March 31, 2007 |2003Q2|289.40 March 31, 2007 |2003Q3|294.34 March 31, 2007 |2003Q4|304.02 March 31, 2007 |2004Q1|309.32 March 31, 2007 |2004Q2|317.78 March 31, 2007 |2004Q3|331.65 March 31, 2007 |2004Q4|339.87 March 31, 2007 |2005Q1|349.02 March 31, 2007 |2005Q2|361.38 March 31, 2007 |2005Q3|373.36 March 31, 2007 |2005Q4|384.45 March 31, 2007 |2006Q1|393.02 March 31, 2007 |2006Q2|398.24 March 31, 2007 |2006Q3|402.77 March 31, 2007 |2006Q4|407.90 March 31, 2007 |2007Q1|409.75