(a) Approximately 163 persons per 100,000 of the resident population were imprisoned in 1990; approximately 256 persons per 100,000 of the resident population were imprisoned in 2006 (Statistical Abstract of the United States 2009); (b) There were exactly 139 prisoners under federal or state jurisdiction per 100,000 residents in 1980 (this includes those on parole); there were exactly 501 such prisoners per 100,000 residents in 2006 (Statistical Abstract of the United States 2009); (c) Exactly 185 prisoners were executed, on the average, by a civil authority in the period 1930-9; exactly 23 prisoners were executed by a civil authority in 1990; exactly 98 prisoners were executed by a civil authority in 1999; exactly 42 prisoners were executed by a civil authority in 2007 (Statistical Abstract of the United States 2009);
What might be be useful to know is total expenditure per capita, in real terms, on goods & services related to control, punishment, surveillance, etc., in aggregated form.
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