AlHijjah 16, 1434, Oct 21, 2013, SPA -- The eurozone's budget deficit fell to 3.7 per cent of gross domestic product (GDP) last year but the region's debt levels continued to rise, data released Monday showed, DPA reported. The region's combined deficit stood at 4.2 per cent in 2011, the EU's statistics office Eurostat said, confirming figures published in April. The 17-member currency bloc's debt level climbed to 90.6 per cent of GDP last year, well above the 60 per cent that is required under the rules for euro members states. The region's combined government debt-to-GDP ratio stood at 80 per cent in 2009.