user: Question: How many political parties had a %2006 rating of 43.5?
Columns: ['Political parties', '% 2006', 'Seats 2006', '% 2001', 'Seats 2001', '% 1997']
Types: ['text', 'text', 'real', 'text', 'real', 'text']
Sample row: ['Social Democratic Party of Germany', '43.5', 5.0, '38.8', 4.0, '46.6']
SQL:

assistant: SELECT COUNT("Political parties") FROM "Table" WHERE "% 2006" = '43.5';