| Attitude to European integration among all respondents |
| Supporters | Opponents | Undecided | ||
| 2011 | IV | 83 | 11 | 6 |
| 2010 | IV | 86 | 9 | 5 |
| 2009 | VI | 85 | 10 | 5 |
| IV | 85 | 9 | 6 | |
| III | 83 | 11 | 6 | |
| I | 85 | 9 | 6 | |
| 2008 | XI | 80 | 12 | 8 |
| VII | 85 | 10 | 5 | |
| IV | 88 | 7 | 5 | |
| 2007 | VII | 89 | 5 | 6 |
| V | 89 | 5 | 6 | |
| IV | 86 | 7 | 8 | |
| I | 87 | 7 | 6 | |
| 2006 | X | 88 | 6 | 6 |
| VIII | 83 | 10 | 7 | |
| IV | 80 | 11 | 9 | |
| I | 80 | 12 | 8 | |
| 2005 | IX | 73 | 16 | 10 |
| VII | 78 | 14 | 8 | |
| VI | 74 | 15 | 11 | |
| V | 76 | 14 | 10 | |
| IV | 77 | 15 | 8 | |
| III | 74 | 17 | 9 | |
| II | 77 | 14 | 9 | |
| 2004 | XII | 76 | 16 | 8 |
| XI | 77 | 16 | 7 | |
| X | 72 | 20 | 8 | |
| IX | 69 | 16 | 7 | |
| VIII | 70 | 21 | 9 | |
| VI | 69 | 22 | 9 | |
| V | 71 | 20 | 9 | |
| IV | 64 | 29 | 7 | |
| III | 62 | 29 | 9 | |
| II | 60 | 31 | 9 | |
| I | 61 | 30 | 9 | |
| 2003 | XII | 63 | 29 | 9 |
| XI | 63 | 30 | 7 | |
| X | 69 | 23 | 8 | |
| IX | 67 | 20 | 13 | |
| VI | 67 | 18 | 15 | |
| V | 66 | 18 | 16 | |
| IV | 59 | 24 | 17 | |
| III | 58 | 24 | 18 | |
| II | 60 | 25 | 15 | |
| I | 63 | 21 | 16 | |
| 2002 | XII | 59 | 24 | 17 |
| XI | 61 | 22 | 17 | |
| X | 60 | 23 | 17 | |
| IX | 59 | 22 | 18 | |
| VIII | 56 | 26 | 18 | |
| VII | 57 | 26 | 17 | |
| VI | 55 | 27 | 18 | |
| V | 62 | 22 | 16 | |
| IV | 58 | 26 | 16 | |
| III | 55 | 29 | 16 | |
| II | 54 | 25 | 21 | |
| I | 57 | 22 | 21 | |
| 2001 | XII | 60 | 22 | 18 |
| X | 56 | 24 | 20 | |
| VII | 53 | 25 | 22 | |
| VI | 54 | 29 | 17 | |
| V | 55 | 28 | 17 | |
| III | 55 | 30 | 15 | |
| 2000 | IX | 55 | 26 | 19 |
| V | 59 | 25 | 16 | |
| II | 55 | 26 | 19 | |
| 1999 | XI | 59 | 26 | 15 |
| V | 55 | 26 | 19 | |
| 1998 | XII | 64 | 19 | 17 |
| VIII | 63 | 19 | 18 | |
| V | 66 | 19 | 15 | |
| 1997 | VIII | 72 | 12 | 15 |
| IV | 72 | 11 | 18 | |
| 1996 | V | 80 | 7 | 13 |
| 1995 | V | 72 | 9 | 19 |
| 1994 | VI | 77 | 6 | 17 |