| 
          
            | Purchases summarize all trades executed during the indicated period including purchases associated with dollar rolls. 
 
 |  
            |  |  
          
            | Transactions ($ million) |  
            | 
                
                  | Maturity | Coupon | Settlement Month | FHLMC | FNMA | GNMA | GNMA2 |  
                  | 30 Year | 3 | October | 1,000 | 2,500 | 100 | 300 |  
                  |  | 3 | November | 800 | 1,550 | 200 | 1,250 |  
                  |  | 3.5 | October | 100 | 300 | 550 | 650 |  
                  |  | 3.5 | November | 1,050 | 800 | 150 | 250 |  
                  |  | 3.5 | December | 1,300 | 3,800 | 0 | 0 |  
                  |  |  |  |  |  |  |  |  
                  | 15 Year | 2.5 | October | 500 | 800 | 0 | 0 |  
                  |  | 2.5 | November | 150 | 300 | 0 | 0 |  
                  |  | 3 | October | 0 | 0 | 0 | 0 |  
                  |  | 3 | November | 250 | 300 | 0 | 0 |  
                  |  | 3 | December | 150 | 350 | 0 | 0 |  
                  |  |  |  |  |  |  |  |  
                  | Total |  |  | 5,300 | 10,700 | 1,000 | 2,450 |  |  |