"Of the 20,115 drug offenders sentenced in fiscal year 2015, slightly less than one-half (47.9%) were convicted of an offense carrying a mandatory minimum penalty.
"• Half (50.7%) of drug offenders convicted of an offense carrying a mandatory minimum penalty remained subject to that penalty at sentencing.
"• The average sentence for drug offenders subject to a mandatory minimum penalty at sentencing was 124 months (with relief, 62 months) compared to 39 months for drug offenders not convicted of an offense carrying a mandatory minimum penalty.
"• Drug offenders were convicted of an offense carrying a mandatory minimum penalty most often in powder cocaine cases (65.7%). In contrast, such a penalty applied least often in marijuana cases (30.6%).
"• Crack cocaine offenders remained subject to mandatory minimum penalties at sentencing most often (in 36.9% of crack cocaine cases involving a conviction for an offense carrying a mandatory minimum penalty). In contrast, 11.3% of marijuana offenders remained subject to a mandatory minimum penalty at sentencing."

Source

US Sentencing Commission, Quick Facts on Mandatory Minimum Penalties, May 2016.
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