| % Correct | |||
|---|---|---|---|
| Republic of Bulgaria (1990-) | 2017- | Rumen Radev | 86%
|
| Tsardom of Bulgaria (1908-1946) | 1918-1943 | Boris III | 82%
|
| Principality of Bulgaria (1878-1908) | 1887-1908 | Ferdinand I | 82%
|
| Tsardom of Bulgaria (1908-1946) | 1908-1918 | Ferdinand I | 82%
|
| People's Republic of Bulgaria (1946-1990) | 1954-1989 | Todor Zhivkov | 79%
|
| Tsardom of Bulgaria (1908-1946) | 1943-1946 | Simeon II | 75%
|
| Principality of Bulgaria (1878-1908) | 1879-1886 | Alexander I | 64%
|
| People's Republic of Bulgaria (1946-1990) | 1946-1949 | Georgi Dimitrov | 64%
|
| Republic of Bulgaria (1990-) | 2002-2012 | Georgi Parvanov | 64%
|
| Republic of Bulgaria (1990-) | 2012-2017 | Rosen Plevneliev | 64%
|
| Republic of Bulgaria (1990-) | 1997-2002 | Petar Stoyanov | 61%
|
| Republic of Bulgaria (1990-) | 1990-1997 | Zhelyu Zhelev | 57%
|
| People's Republic of Bulgaria (1946-1990) | 1949-1954 | Valko Chervenkov | 43%
|