Of the approximately 23 million prisoners in American jails in 2010, about 90 to 95% accepted some kind of plea bargain. A plea bargain usually allows the criminal to plead guilty to a lesser charge, or to receive a lighter sentence. This percentage has roughly remained the same since 2000.
More criminal statistics:
In 1999, India had the greatest number of acquittals — over 1 million defendants were acquitted that year. India’s acquittal rate in 1999 was more than the combined number of acquittals of the next 48 countries with the highest acquittal rates.
Around 2/3 of the world’s executions occur in China.
Approximately 0.7% of the American population is imprisoned. This is a very high rate compared to most of the rest of the world, where the average incarceration rate is closer to 0.01%.