21  Table 2  Public finance overview (1) (per cent of GDP)  Update to the 2018 Economic and Financial Document Current legislation scenari  o  Policy scenario (2)  2017  2018  2019  2020  2021  2017  2018  2019  2020  2021  Net borrowing  2.4  1.8  1.2  0.7  0.5  2.4  1.8  2.4  2.1  1.8  Primary surplus  1.4  1.8  2.4  3.0  3.3  1.4  1.8  1.3  1.7  2.1  Total revenue  46.4  46.2  46.3  46.3  46.0  46.4  46.1  45.8  45.7  45.2  of which: incidence of taxation  42.2  41.9  42.2  42.3  42.1  42.2  41.8  41.8  41.7  41.3  Primary expenditure  44.9  44.3  43.9  43.3  42.7  44.9  44.3  44.6  44.1  43.2  of which: current  41.1  41.2  40.7  40.2  39.7  41.1  41.1  41.4  40.7  39.9  capital  3.9  3.2  3.2  3.1  2.9  3.9  3.2  3.3  3.4  3.3  Interest expense  3.8  3.6  3.6  3.7  3.8  3.8  3.6  3.7  3.8  3.9  GDP growth (percentage change)  1.6  1.2  0.9  1.1  1.1  1.6  1.2  1.5  1.6  1.4  Debt (3)  131.2  130.9  129.2  126.7  124.6  131.2 130.9  130.0  128.1  126.7  (1) Rounding of decimal points may cause discrepancies.
– (2) Revenue and primary expenditure are calculated based on data from the Update to the 2018 Economic and Financial Document, the draft 2019 Budget Law and Decree Law 119/2018. – (3) Includes financial support to EMU countries.