>Year>
Datafile
| Value label | Value | Absolute frequency | Relative frequency |
|---|---|---|---|
| missing | -9 | 2007 | 93.39% |
| proxy | -7 | 125 | 5.82% |
| 1968 | 1 | 0.05% | |
| 1972 | 2 | 0.09% | |
| 1974 | 1 | 0.05% | |
| 1975 | 1 | 0.05% | |
| 1980 | 1 | 0.05% | |
| 1985 | 1 | 0.05% | |
| 1989 | 2 | 0.09% | |
| 1991 | 1 | 0.05% | |
| 1993 | 1 | 0.05% | |
| 1997 | 1 | 0.05% | |
| 1998 | 1 | 0.05% | |
| 2003 | 1 | 0.05% | |
| 2007 | 1 | 0.05% | |
| 2009 | 1 | 0.05% | |
| 2012 | 1 | 0.05% | |
| Total | 2149 | 100.0% |
| Mean | Number Missing | Min | Max | Std Dev | N |
|---|---|---|---|---|---|
| 1989.06 | 2132 | 1968.0 | 2012.0 | 14.03 | 17 |
