| Value |
Category |
| -6 |
never |
| -5 |
other |
| -4 |
missing data |
| -3 |
refused to answer |
| -2 |
not applicable |
| -1 |
do not know |
| 1995 |
|
| 1996 |
|
| 1997 |
|
| 1998 |
|
| 1999 |
|
| 2000 |
|
| 2001 |
|
| 2002 |
|
| 2003 |
|
| 2004 |
|
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.