Fig. 2

Average price of indicator untaxed beverages post SSB tax increases in Tonga in 2013, 2016 and 2017, compared to what was expected based on existing trends, 2009–2018 (a 15% milk tariff was removed in 2016). Notes: Adjusted for autocorrelation, visitors, GDP per capita, season and exchange rate T$/US$. Vertical lines indicate increases in SSB taxes that did not apply to these beverages. The grey area indicates that juice was less likely to be a potential substitute for taxed beverages because it became included in the tax system