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Historical Values
Year Value
2013 3.5% (2006)
2014 3.5% (2006)
2015 4% (2010)
2016 4% (2010)
2017 4% (2010)
2018 4% (2010)
2019 4% (2010)
2020 4% (2010)
2021 NA
2022 NA
2023 NA
2024 NA