user: Question: What is the average value for 1970, when the Region is east europe (7 economies), and when 2000 has a value greater than 2?
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 AVG("1970") FROM "Table" WHERE "Region" = 'east europe (7 economies)' AND "2000" > 2.0;