| Data Item | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 | 1981 | 1982 | 1983 | 1984 | 1985 | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Murder as a percentage of 1973 levels | 100.00 | 104.00 | 96.00 | 88.00 | 92.00 | 104.00 | 112.00 | 100.00 | 100.00 | 84.00 | 84.00 | 100.00 | 76.00 | 68.00 | 80.00 | 68.00 | 72.00 | 68.00 | 88.00 | 72.00 | 64.00 | 56.00 | 48.00 | 36.00 | 36.00 | 36.00 | 36.00 | 24.00 | 24.00 | 28.00 | 20.00 | 16.00 | 20.00 | 22.00 | 24.00 | 20.00 |
Rape means sexual intercourse without valid consent. Homicide is the deliberate and unlawful killing of one person by another.
Source: Steven Pinker, The Better Angels of Our Nature (New York: Penguin Group, 2011). Pg. 402.