| 
          
            | 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 | 2.5 | January | 100 | 400 | 0 | 0 |  
                  | 2.5 | February | 50 | 300 | 0 | 0 |  
                  | 3 | January | 2,200 | 4,200 | 450 | 2,400 |  
                  | 3 | February | 1,450 | 2,750 | 250 | 1,550 |  
                  | 3.5 | January | 0 | 0 | 100 | 450 |  
                  | 3.5 | February | 400 | 800 | 0 | 250 |  
                  |  |  |  |  |  |  |  |  
                  | 15 Year | 2 | January | 0 | 100 | 0 | 0 |  
                  | 2 | February | 0 | 25 | 0 | 0 |  
                  | 2.5 | January | 1,050 | 2,100 | 0 | 0 |  
                  | 2.5 | February | 300 | 550 | 0 | 0 |  
                  | 3 | January | 0 | 125 | 0 | 0 |  
                  | 3 | February | 150 | 0 | 0 | 0 |  
                  |  |  |  |  |  |  |  |  
                  | Total |  |  | 5,700 | 11,350 | 800 | 4,650 |  |  |