When you hold a strong opinion, do you ever find yourself persuading your friends, relatives, or fellow workers to share your views? If so, does this happen ... often, from time to time, rarely, never?
| ZA Study Number | Eurobarometer | Fieldwork Month | Fieldwork Year | Question Number | Variable Name (1) |
| 0628 | ECS73 | 9-10 | 1973 | Q.28 | V94 |
| 0987 | 3 | 5 | 1975 | Q.74 | V73 |
| 0988 | 4 | 10 | 1975 | Q.67 | V39 |
| 0989 | 5 | 5-6 | 1976 | Q.148 | V41 |
| 0990 | 6 | 11 | 1976 | Q.215 | V121 |
| 0991 | 7 | 4-5 | 1977 | Q.173 | V97 |
| 0992 | 8 | 10-11 | 1977 | Q.175 | V77 |
| 0993 | 9 | 5-6 | 1978 | Q.113 | V10 |
| 0994 | 10 | 10-11 | 1978 | Q.113 | V10 |
| 1036 | 11 | 4 | 1979 | Q.153 | V63 |
| 1037 | 12 | 10 | 1979 | Q.131 | V32 |
| 1038 | 13 | 4 | 1980 | Q.138 | V34 |
| 1039 | 14 | 10-11 | 1980 | Q.127 | V21 |
| 1206 | 15 | 4 | 1981 | Q.143 | V31 |
| 1207 | 16 | 10-11 | 1981 | Q.251 | V67 |
| 1208 | 17 | 3-4 | 1982 | Q.163 | V104 |
| 1209 | 18 | 10 | 1982 | Q.242 | V43 |
| 1318 | 19 | 3-4 | 1983 | Q.127 | V16 |
| 1319 | 20 | 10 | 1983 | Q.240 | V37 |
| 1320 | 21 | 3-4 | 1984 | Q.214 | V13 |
| 1321 | 22 | 10-11 | 1984 | Q.228 | V126 |
| 1541 | 23 | 3-4 | 1985 | Q.134 | V13 |
| 1542 | 24 | 10-11 | 1985 | Q.157 | V19 |
| 1543 | 25 | 3-4 | 1986 | Q.214 | V13 |
| 1544 | 26 | 10-11 | 1986 | Q.147 | V19 |
| 1712 | 27 | 4 | 1987 | Q.233 | V13 |
| 1713 | 28 | 10-11 | 1987 | Q.137 | V19 |
| 1714 | 29 | 3-4 | 1988 | Q.127 | V13 |
| 1715 | 30 | 10-11 | 1988 | Q.121 | V20 |
| 1750 | 31 | 3-4 | 1989 | Q.126 | V13 |
| 1751 | 31A | 7 | 1989 | Q.129 | V18 |
| 1752 | 32 | 10-11 | 1989 | Q.5 | V14 |
| 1753 | 33 | 3-4 | 1990 | Q.4 | V14 |
| 1960 | 34.0 | 10-11 | 1990 | Q.12 | V69 |
| 1961 | 34.1 | 10-11 | 1990 | Q.3 | V18 |
| 1962 | 34.2 | 10-11 | 1990 | Q.4 | V24 |
| 2031 | 35.0 | 3 | 1991 | Q.4 | V20 |
| 2032 | 35.1 | 3 | 1991 | Q.2 | V18 |
| 2081 | 36 | 10-11 | 1991 | Q.4 | V21 |
| 2141 | 37.0 | 3-4 | 1992 | Q.4 | V20 |
| 2241 | 37.1 | 4-5 | 1992 | Q.3 | V19 |
| 2294 | 38.0 | 9-10 | 1992 | Q.4 | V20 |
| 2295 | 38.1 | 11 | 1992 | Q.8 | V23 |
| 2346 | 39.0 | 3-4 | 1993 | Q.4 | V22 |
| 2347 | 39.1 | 5-6 | 1993 | Q.2 | |
| 2459 | 40 | 10-11 | 1993 | Q.13 | V30 |
| 2490 | 41.0 | 4-5 | 1994 | Q.13 | V39 |
| 2936 | 43.0 | 3-4 | 1995 | Q.3 | V38 |
| 2637 | 43.1 | 4-5 | 1995 | Q.5 | V40 |
| 2639 | 43.1bis | 5-6 | 1995 | Q.3 | V38 |
| 2689 | 44.0 | 10-11 | 1995 | Q.3 | V35 |
| 2690 | 44.1 | 10-11 | 1995 | Q.5 | V66 |
| 2828 | 44.2bis | 2 | 1996 | Q.6 | V75 |
| 2829 | 44.3 | 2-4 | 1996 | Q.3 | V38 |
| 2831 | 45.1 | 4-5 | 1996 | Q.3 | V38 |
| 2898 | 46.0 | 10-11 | 1996 | Q.3 | V36 |
| 2899 | 46.1 | 10-11 | 1996 | Q.3 | V36 |
| 2935 | 47.0 | 1-2 | 1997 | Q.3 | V38 |
| 2936 | 47.1 | 3-4 | 1997 | Q.3 | V38 |
| 2937 | 47.2 | 4-6 | 1997 | Q.3 | V40 |
| 2959 | 48.0 | 10-11 | 1997 | Q.3 | V38 |
| 3052 | 49 | 4-5 | 1998 | Q.3 | V40 |
| 3085 | 50.0 | 10-11 | 1998 | Q.4 | V74 |
| 3171 | 51.0 | 3-4 | 1999 | Q.3 | |
| 3204 | 52.0 | 10-11 | 1999 | Q.6 | |
| 3296 | 53 | 4-5 | 2000 | Q.3 | |
| 3387 | 54.1 | 11-12 | 2000 | Q.3 | |
| 3507 | 55.1 | 4-5 | 2001 | Q.6 | |
| 3627 | 56.2 | 10-11 | 2001 | Q.3 | |
| 3639 | 57.1 | 3-5 | 2002 | Q.3 | |
| 3693 | 58.1 | 10-11 | 2002 | Q.3 | |
| 3904 | 59.1 | 3-4 | 2003 | Q.3 | |
| 3938 | 60.1 | 10-11 | 2003 | Q.3 | |
| 4056 | 61 | 2-3 | 2004 | Q.3 | |
| 4229 | 62.0 | 10-11 | 2004 | Q.3 | |
| 4411 | 63.4 | 5-6 | 2005 | QA2 | |
| 4414 | 64.2 | 10-11 | 2005 | QA2 | |
| 4505 | 65.1 | 2-3 | 2006 | QA1 | |
| 4506 | 65.2 | 3-5 | 2006 | QA2 | |
| 4526 | 66.1 | 9-10 | 2006 | QA2 | |
| 4530 | 67.2 | 4-5 | 2007 | QA2 | |
| 4565 | 68.1 | 9-11 | 2007 | QA2 | |
| 4744 | 69.2 | 3-5 | 2008 | QA2 | |
| 4819 | 70.1 | 10-11 | 2008 | QA2 | |
| 5234 | 73.4 | 5 | 2010 | QA3 | |
| 5449 | 74.2 | 11-12 | 2010 | QA3 | |
| 5481 | 75.3 | 5 | 2011 | QA3 | |
| 5567 | 76.3 | 11 | 2011 | QA3 | |
| 5612 | 77.3 | 5 | 2012 | QA3 | |
| 5933 | 82.4 | 11-12 | 2014 | D74 | |
| 5965 | 83.2 | 3 | 2015 | D77 | |
| 6595 | 83.4 | 5-6 | 2015 | D77 | |
| 6596 | 84.1 | 9 | 2015 | D77 | |
| 6644 | 84.4 | 11-12 | 2015 | D77 | |
| 6697 | 86.1 | 9-10 | 2016 | D77 | |
| 6791 | 86.3 | 11-12 | 2016 | D77 | |
| 6862 | 87.2 | 4 | 2017 | D77 | |
| 6924 | 87.4 | 6 | 2017 | D77 | |
| 6925 | 88.1 | 9-10 | 2017 | D77 | |
| 6927 | 88.2 | 10 | 2017 | D77 | |
| 6928 | 88.3 | 11 | 2017 | D77 | |
| 6963 | 89.1 | 3 | 2018 | D77 | |
| 7482 | 89.2 | 4 | 2018 | D77 | |
| 7483 | 89.3 | 6-7 | 2018 | D77 | |
| 7484 | 90.1 | 9 | 2018 | D77 | |
| 7488 | 90.2 | 10-11 | 2018 | D77 | |
| 7489 | 90.3 | 11 | 2018 | D77 | |
| 7556 | 90.4 | 12 | 2018 | D77 | |
| 7561 | 91.1 | 2-3 | 2019 | D77 | |
| 7562 | 91.2 | 3 | 2019 | D77 | |
| 7572 | 91.3 | 4 | 2019 | D77 | |
| 7575 | 91.4 | 5 | 2019 | D77 | |
| 7576 | 91.5 | 6-7 | 2019 | D77 | |
| 7580 | 92.2 | 10 | 2019 | D77 | |
| 7602 | 92.4 | 12 | 2019 | D77 |
(1) Please note that the variable names refer to the final ICPSR/ZA codebook editions, if available.
