Here are the numbers that go with the studies...this now includes obama's CDC study of gun self defense...the year of the study and the total number of times a gun was used to save a life or stop a crime is listed...the studies are both done from private and government research over a close to 30 year period....
GunCite Frequency of Defensive Gun Use in Previous Surveys
Field...1976....3,052,717
Bordua...1977...1,414,544
DMIa 1978...2,141,512
DMIb...1978...1,098,409
Hart...1981...1.797,461
Ohio...1982...771,043
Mauser...1990...1,487,342
Gallup...1991...777,153
Gallup...1993...1,621,377
L.A. TIMES...1994...3,609,682
Tarrance... 1994... 764,036
DEPT. OF JUSTICE...1994...1.5 million
(Subsequent to Kleck's study, the Department of Justice sponsored a survey in 1994 titled, Guns in America: National Survey on Private Ownership and Use of Firearms (
text,
PDF). Using a smaller sample size than Kleck's, this survey estimated 1.5 million DGU's annually.)
Lawerence Southwich Jr. 400,000 fewer violent crimes and at least 800,000 violent crimes deterred..
.(Lawrence Southwick, Jr.,
Guns and Justifiable Homicide: Deterrence and Defense-concludes there are at least 400,000 "fewer violent crimes due to civilian self-defense use of guns" and at least "800,000 violent crimes are deterred each year because of gun ownership and use by civilians.")
Obama's CDC...
from
slate.com an article on CDC obama's era...500-3 million defensive gun uses
Handguns suicides mass shootings deaths and self-defense Findings from a research report on gun violence.
7. Guns are used for self-defense often and effectively. “Almost all national survey estimates indicate that defensive gun uses by victims are at least as common as offensive uses by criminals, with estimates of annual uses ranging from about 500,000 to more than 3 million per year … in the context of about 300,000 violent crimes involving firearms in 2008,” says the report. The three million figure is probably high, “based on an extrapolation from a small number of responses taken from more than 19 national surveys.”