| 
                
            
            	| 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 | May | 309 | 411 | 0 | 705 |  
                            |  | 3.5 | June | 700 | 850 | 0 | 400 |  
                            |  | 4 | May | 716 | 1,022 | 0 | 450 |  
                            |  | 4 | June | 1,100 | 1,700 | 0 | 650 |  
                            |  |  |  |  |  |  |  |  
                            | 15 Year | 3 | June | 418 | 362 | 0 | 0 |  
                            |  | 3.5 | June | 50 | 150 | 0 | 0 |  
                            |  |  |  |  |  |  |  |   
                            | Total |  |  | 3,293 | 4,495 | 0 | 2,205 |  
                          	| *Does not include trades associated with small value exercises. |  |  |