Nearly 84 percent (83.7) of those who cast ballots on 12 April supported Hungary's membership of the EU. 16 percent voted against accession. Turnout was just 45.6 percent, but the results are valid under the constitution. The low turnout translates into the support of 38 percent of eligible voters. Participation was 5 percentage points lower than in the 1997 referendum on joining NATO and far below the 66 percent that voted in the 2002 parliamentary elections.