| 
                
            
            	| 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 | 3.5 | June | 0 | 0 | 0 | 210 |  
                            |  | 3.5 | July | 960 | 1,145 | 0 | 1,189 |  
                            |  | 4 | June | 0 | 0 | 0 | 208 |  
                            |  | 4 | July | 1,772 | 2,418 | 0 | 878 |  
                            |  | 4 | Aug | 0 | 100 | 0 | 0 |  
                            |  |  |  |  |  |  |  |  
                            | 15 Year | 3 | Aug | 314 | 157 | 0 | 0 |  
                            |  |  |  |  |  |  |  |   
                            | Total |  |  | 3,046 | 3,820 | 0 | 2,485 |  
                          	| *Does not include trades associated with small value exercises. |  |  |