DALLAS (CBSDFW.COM/AP) — The number of officially logged suicide attempts among Texas prisoners has nearly tripled in the last decade.

That’s according to documents The Associated Press obtained from the Texas Department of Criminal Justice.

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The suicide attempts rose from less than 700 in 2009 to nearly 2,000 in 2018 even as the number of people imprisoned in the state has fallen.

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Prisoner rights advocates see this rise as proof that Texas’ state-run prisons need more outside oversight. However, corrections staff and some elected leaders suggest the increase can be attributed to prison staffs being more focused on monitoring a growing number of inmates with serious mental health needs.

Officials say the state’s prisons also have changed what they define as a suicide attempt, which has led to more attempts being counted.

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(© Copyright 2019 CBS Broadcasting Inc. All Rights Reserved. The Associated Press contributed to this report.)