| Year | Sofia | Plovdiv |
|---|---|---|
| 2026 | 2,833 | — |
| 2025 | 7,141 | — |
| 2024 | 5,484 | 235 |
| 2023 | 7,783 | — |
| 2022 | 23,928 | — |
| 2021 | 33,320 | — |
| 2020 | 30,633 | — |
| 2019 | 26,917 | — |
| 2018 | 23,916 | — |
| 2017 | 16,661 | — |
| 2016 | 22,401 | — |
| 2015 | 18,211 | — |
| 2014 | 18,647 | — |
| 2013 | 12,648 | — |
| 2012 | 6,258 | — |
| 2011 | 6,718 | — |
| 2010 | 6,665 | — |
| 2009 | 5,447 | — |
| 2008 | 5,593 | — |
| 2007 | 4,330 | — |
| 2006 | 4,991 | — |
| 2005 | 8,043 | — |
| 2004 | 3,068 | — |
| 2003 | 7,362 | — |
| 2002 | 12,035 | — |
| 2001 | 7,832 | 775 |
| 2000 | 8,846 | 4,400 |
| 1999 | 14,108 | 6,136 |
| 1998 | 22,182 | 6,415 |
| 1997 | 12,584 | 1,636 |
| 1996 | 25,435 | 5,125 |
| 1995 | 22,535 | 6,035 |
| 1994 | 18,502 | 6,250 |
| 1993 | 28,277 | 13,296 |
| 1992 | 40,422 | 4,497 |
| 1991 | 17,377 | — |
| 1990 | 5,739 | — |