By what percentage have the number of women in prison increased in the last 30 years?

The correct answer highlights a staggering increase in the number of women incarcerated over a span of three decades, specifically noting a 640% rise. This substantial percentage reflects a significant shift in criminal justice and societal factors contributing to the rise in female incarceration rates.

In "Just Mercy," Bryan Stevenson discusses systemic issues within the criminal justice system that disproportionately affect marginalized groups, including women. Factors such as economic instability, substance abuse, and involvement in nonviolent offenses are influential in driving more women into the criminal justice system.

This data point serves to underline the urgent need for reform and a deeper understanding of the issues affecting women in the criminal justice system, as well as the consequent social implications. Recognizing the enormity of this increase is key to advocating for changes that can address the root causes of such prison population trends.