(2007) Medical FR/JP 693,666/807,287 words Otero (2007) European Parliament SP/EN 14/17 million words Ismail and Manandhar (2010) European Parliament EN/SP 500,000/500,000 sentences Bouamor et al.
2013  "in relation to parallel corpora, it is more likely for comparable corpora to be designed as general balanced corpora.".