Data series 1, With handguns (Line).
Point 1, X=1973, Y=93.
Point 2, X=1974, Y=95.
Point 3, X=1975, Y=93.
Point 4, X=1976, Y=66.
Point 5, X=1977, Y=59.
Point 6, X=1978, Y=67.
Point 7, X=1979, Y=76.
Point 8, X=1980, Y=69.
Point 9, X=1981, Y=69.
Point 10, X=1982, Y=60.
Point 11, X=1983, Y=54.
Point 12, X=1984, Y=46.
Point 13, X=1985, Y=58.
Point 14, X=1986, Y=51.
Point 15, X=1987, Y=49.
Point 16, X=1988, Y=63.
Point 17, X=1989, Y=40.
Point 18, X=1990, Y=48.
Point 19, X=1991, Y=50.
Point 20, X=1992, Y=44.
Point 21, X=1993, Y=50.
Point 22, X=1994, Y=66.
Point 23, X=1995, Y=43.
Point 24, X=1996, Y=50.
Point 25, X=1997, Y=50.
Point 26, X=1998, Y=40.
Point 27, X=1999, Y=25.
Point 28, X=2000, Y=33.
Point 29, X=2001, Y=46.
Point 30, X=2002, Y=38.
Point 31, X=2003, Y=34.
Point 32, X=2004, Y=36.
Point 33, X=2005, Y=42.
Maximum at X=1974, Y=95 and minimum at X=1999, Y=25.
Data series 2, With other guns (Line).
Point 1, X=1973, Y=34.
Point 2, X=1974, Y=33.
Point 3, X=1975, Y=34.
Point 4, X=1976, Y=28.
Point 5, X=1977, Y=24.
Point 6, X=1978, Y=24.
Point 7, X=1979, Y=24.
Point 8, X=1980, Y=26.
Point 9, X=1981, Y=17.
Point 10, X=1982, Y=22.
Point 11, X=1983, Y=20.
Point 12, X=1984, Y=20.
Point 13, X=1985, Y=12.
Point 14, X=1986, Y=11.
Point 15, X=1987, Y=18.
Point 16, X=1988, Y=13.
Point 17, X=1989, Y=17.
Point 18, X=1990, Y=9.
Point 19, X=1991, Y=18.
Point 20, X=1992, Y=11.
Point 21, X=1993, Y=17.
Point 22, X=1994, Y=12.
Point 23, X=1995, Y=19.
Point 24, X=1996, Y=7.
Point 25, X=1997, Y=18.
Point 26, X=1998, Y=18.
Point 27, X=1999, Y=16.
Point 28, X=2000, Y=14.
Point 29, X=2001, Y=15.
Point 30, X=2002, Y=13.
Point 31, X=2003, Y=11.
Point 32, X=2004, Y=18.
Point 33, X=2005, Y=8.
Maximum at X=1973, Y=34 and minimum at X=1996, Y=7.
Data series 3, Other methods* (Line).
Point 1, X=1973, Y=7.
Point 2, X=1974, Y=4.
Point 3, X=1975, Y=2.
Point 4, X=1976, Y=17.
Point 5, X=1977, Y=10.
Point 6, X=1978, Y=2.
Point 7, X=1979, Y=6.
Point 8, X=1980, Y=9.
Point 9, X=1981, Y=5.
Point 10, X=1982, Y=10.
Point 11, X=1983, Y=6.
Point 12, X=1984, Y=6.
Point 13, X=1985, Y=8.
Point 14, X=1986, Y=4.
Point 15, X=1987, Y=7.
Point 16, X=1988, Y=2.
Point 17, X=1989, Y=9.
Point 18, X=1990, Y=9.
Point 19, X=1991, Y=3.
Point 20, X=1992, Y=9.
Point 21, X=1993, Y=3.
Point 22, X=1994, Y=1.
Point 23, X=1995, Y=12.
Point 24, X=1996, Y=4.
Point 25, X=1997, Y=2.
Point 26, X=1998, Y=3.
Point 27, X=1999, Y=1.
Point 28, X=2000, Y=4.
Point 29, X=2001, Y=9.
Point 30, X=2002, Y=5.
Point 31, X=2003, Y=7.
Point 32, X=2004, Y=3.
Point 33, X=2005, Y=5.
Maximum at X=1976, Y=17 and minimum at X=1994, Y=1.