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Historical Values
Year Value
2008 18.6 cu km (2000)
2009 18.6 cu km (2000)
2010 18.6 cu km (2000)
2011 18.6 cu km (2000)
2012 18.6 cu km (2000)
2013 18.55 cu km (2011)
2014 18.55 cu km (2011)
2015 18.55 cu km (2011)
2021 21.734 billion cubic meters (2017 est.)
2022 21.734 billion cubic meters (2017 est.)
2023 21.73 billion cubic meters (2020 est.)
2024 21.73 billion cubic meters (2020 est.)
2025 21.734 billion cubic meters (2022 est.)