Script Output

s022:  year/month of start-fieldwork            Number of Observations
------------------------------------        ------------------------------
                                            Total   Integers   Nonintegers
|  #                         Negative         585       585          -
|  #                         Zero               -         -          -
|  #                         Positive           -         -          -
|  #                                        -----     -----      -----
|  #                         Total            585       585          -
|  #                         Missing            -
+----------------------                     -----
-4                                            585
   (1 unique value)

      s022 is labeled but 585 values are NOT documented in the label.

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
        s022 |       585          -4           0         -4         -4
@mean        -4
@sd     0.000
@min        -4
@max        -4
@values -4
@type long
@label year/month of start-fieldwork
@class constant
@N_unique 1
@N 585