user: Question: How many peak positions were there on the Weekly Charts?
Columns: ['Release', 'Oricon Albums Chart', 'Peak Position', 'Debut Sales (copies)', 'Sales Total (copies)', 'Chart Run']
Types: ['text', 'text', 'real', 'real', 'real', 'text']
Sample row: ['June 10, 2009', 'Daily Charts', 1.0, 101976.0, 1005874.0, '34 weeks']
SQL:

assistant: SELECT COUNT("Peak Position") FROM "Table" WHERE "Oricon Albums Chart" = 'Weekly Charts';