[['Greek', '1977', '635 (0.07%)'], ['[TABLECONTEXT]', '[TITLE]', 'Northern Dobruja'], ['[TABLECONTEXT]', 'ETHNICITY', 'Greek'], ['Greek', '1913', '9,999 (2.6%)']]
The Greek population in Northern Dobruja peaked in 1913 at 9,999 and achieved its lowest in 1977 at only 635.