I, Ball
FIREBIRD SILVER 199 
June - October 87

| ALL | ZX | C64 | 
| 5 | 8 | 5 | 
| Jul 87 | Jun 87 | Jun 87 | 
Sources
(click here for more information on the data shown below)
All Formats (Gallup)
| 6 | WEEK to c.87-06-20 | PoCW p45 87-06-26 | |
| 20 | WEEK to c.87-07-04 | Derby Evening Telegraph p20 87-07-11 | |
| 5 | WEEK to c.87-07-11 | ( PoCW p44 87-07-24 ) | |
| 7 | WEEK to c.87-07-18 | PoCW p44 87-07-24 | |
| 11 | WEEK to c.87-07-25 | PoCW p45 87-07-31 | |
| 11 | WEEK to c.87-08-01 | PoCW p45 87-08-07 | |
| 11 | WEEK to c.87-08-08 | PoCW p45 87-08-14 | |
| 12 | WEEK to c.87-08-15 | PoCW p45 87-08-21 | |
| 5 | MONTH to c.87-06-06 | CU #47 p11 Aug 87 | |
| 5 | MONTH to c.87-07-04 | CU #48 p9 Sep 87 87-08-26 | |
| 6 | MONTH to c.87-08-08 | CU #49 p7 Oct 87 | |
| 17 | MONTH to c.87-09-12 | CU #50 p9 Nov 87 87-10-26 | |
| 8 | MONTH to c.87-06-13 | YS #21 p34 Sep 87 | |
| 14 | MONTH to c.87-06-11 | ( YS #22 p66 Oct 87 87-09-10 ) | |
| 9 | MONTH to c.87-07-11 | YS #22 p66 Oct 87 87-09-10 | |
| 9 | MONTH to c.87-07-18 | SU #66 p39 Sep 87 87-08-18 | |
| 9 | MONTH to c.87-08-15 | SU #67 p41 Oct 87 87-09-18 | |