Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_68 (quantity VARCHAR, manufacturer VARCHAR, retired VARCHAR)

### Question ###
How many in the quantity section had Fokker as a manufacturer and retired later than 1999?

### Accurate SQL ###

SELECT COUNT(quantity) FROM table_name_68 WHERE manufacturer = "fokker" AND retired > 1999