user: Question: What is the lowest value for 1990, when the Region is east asia (10 economies), and when 1960 has a value less than 12.6?
Columns: ['Region', '1950', '1960', '1970', '1980', '1990', '2000']
Types: ['text', 'real', 'real', 'real', 'real', 'real', 'real']
Sample row: ['West Asia (15 economies)', 2.0, 2.3, 3.0, 3.8, 3.4, 3.7]
SQL:

assistant: SELECT MIN("1990") FROM "Table" WHERE "Region" = 'east asia (10 economies)' AND "1960" < 12.6;