displ_when_x1_y_group
-3
|
filtered
de
|
| -2
|
don't know/invalid
de
|
| -1
|
refuse
de
|
| 1
|
Before 2000
de
|
| 2
|
2000 to 2009
de
|
| 3
|
2010 to 2019
de
|
| 4
|
2010 to 2019
de
|
