Data:Bjs.gov/Homicide Trends in the United States, 1980-2008/htus8008f30.tab

Family homicides by relationship, 1980-2008 (Percent of victims) Note: Percentages are based on the 63.1% of homicides from 1980 through 2008 for which victim/offender relationships were known.

year	spouse	parent	sibling	child	other
number	number	number	number	number	number
Year	Spouse/ex-spouse	Parent	Sibling	Child	Other family
1980	51.9	9.7	7.9	15	15.5
1981	51.7	10.4	8.3	14.6	14.9
1982	49.2	10.3	7.5	17.2	15.8
1983	49.5	10.2	8.2	16.4	15.7
1984	47.8	11.2	9.4	15.9	15.8
1985	49.4	10.4	7.5	18.2	14.6
1986	48.7	10.3	7.4	18.2	15.3
1987	46.1	9.8	8.6	18	17.4
1988	47.9	10.7	8	18.4	15
1989	43.9	11	8.2	20.1	16.7
1990	45.9	10.1	8.9	19.3	15.8
1991	42.8	11.7	8	20.9	16.6
1992	44.5	10.8	7.6	20.8	16.2
1993	44.3	11.5	7.8	21.2	15.3
1994	43.7	11.8	8.1	20.6	15.8
1995	41.9	11.8	6.3	22.7	17.3
1996	43.5	11.5	5.9	23	16.1
1997	39.3	11.6	7.5	25.3	16.3
1998	43.2	11.8	6.1	23.5	15.4
1999	39.2	13.2	5.7	25.5	16.5
2000	42.8	12.6	6.5	22	16.2
2001	39.6	11.3	5.5	26.3	17.2
2002	39.9	12.6	6.2	24.4	17
2003	37.2	13.1	6.3	25.5	17.9
2004	39.3	12.9	6.3	24.4	17.1
2005	39.4	13.3	6.6	23.4	17.3
2006	38.1	13	5.9	25.4	17.6
2007	39.3	11.1	6.6	26.4	16.6
2008	36.7	13	6.6	25	18.7

Data copied from: Alexia D. Cooper, Erica L. Smith, w:Bureau of Justice Statistics (2011-11-16). Homicide Trends in the United States, 1980-2008 Archived at https://web.archive.org/web/20180330165915/https://www.bjs.gov/index.cfm?ty=pbdetail&iid=2221 Data appears in the file htus8008f30.csv included in the “Spreadsheets” link from that web page, which internally lists “Data source: Supplementary Homicide Report.”

Data available under Creative Commons Zero.