Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Year | Div. | Pos. | Cup | Top scorer (League) |
| --- | --- | --- | --- | --- |
| 2003 | UzL | 12th | 1/4 |  |
| 2004 | UzL | 7th | 1/4 | Rahmat Inogamov - 8 |
| 2005 | UzL | 12th | 1/2 | Alisher Kholiqov - 6 |
| 2006 | UzL | 11th | 1/4 | Alisher Kholiqov - 9 |
| 2007 | UzL | 9th | R16 |  |
| 2008 | UzL | 15th | 1/4 | Lochin Soliev - 8 |
| 2009 | UzL | 15th | 1/4 |  |
| 2010 | 1st | 1st | R32 | Abdulatif Juraev - 27 |
| 2011 | UzL | 9th | R32 | Sukhrob Nematov - 7 |
| 2012 | UzL | 7th | 1/2 | Vokhid Shodiev - 5 |
| 2013 | UzL | 6th | R16 | Vokhid Shodiev - 12 |
Question:
how many top scorers do not appear twice?
Answer:
4