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Tariff 800 - effective 7-1-2018 to 6-30-2019 Tariff 800 - effective 7-1-2017 to 6-30-2018 Tariff 800 - effective 7-1-2016 to 6-30-2017 Tariff 800 - effective 7-1-2015 to 6-30-2016 Tariff 800 - effective 7-1-2014 to 6-30-2015 Tariff 800 - effecitve 7-1-2013 to 6-30-2014 Tariff 800 - effective 1-1-2011 to 7-1-2013 Tariff 700 - effective 12-1-1998 to 12-31-2010