How many peak positions were there on the weekly charts?
CREATE TABLE table_23180638_1 (peak_position VARCHAR, oricon_albums_chart VARCHAR)
SELECT COUNT(peak_position) FROM table_23180638_1 WHERE oricon_albums_chart = "Weekly Charts"
### Context: CREATE TABLE table_23180638_1 (peak_position VARCHAR, oricon_albums_chart VARCHAR) ### Question: How many peak positions were there on the weekly charts? ### Answer: SELECT COUNT(peak_position) FROM table_23180638_1 WHERE oricon_albums_chart = "Weekly Charts"