SURVEY OF INCOME AND PROGRAM PARTICIPATION,
     2008 PANEL LONGITUDINAL WEIGHT (WAVES 1-16)
     FILE DATA DICTIONARY

DATA        SIZE  BEGIN

D LGTKEY      8      1
T PE: Person longitudinal key
     The longitudinal key is in sort by
     scrambled id (SSUID). The first five
     digits of the key contain a longitudinal
     sequence number which is unique for the
     sample unit across all waves.  The last
     three digits contain a person's index
     which identifies a person within a sample
     unit and is unique for a person across all
     waves.  This key can be used to merge
     people longitudinally.  Universe =
             All persons
V 1001:90000001 .Longitudinal Key

D SPANEL      4      9
T SU: Sample Code - Indicates Panel Year
      Universe =                 All persons
V       2008 .Panel Year

D SSUID      12     13
T SU: Sample Unit Identifier
     Sample Unit identifier This identifier is
     created by scrambling together the PSU,
     Segment, Serial, Serial Suffix of the
     original sample address.  It may be used
     in matching sample units from different
     waves.  Universe =                 All
     persons
V 000000000000:999999999999 .Scrambled Id

D EPPPNUM     4     25
T PE: Person number
     Person number.  This field differentiates
     persons within the sample unit. Person
     number is unique within the sample unit.
     Universe =                 All persons
V   101:1699 .Person number

D LGTPN1WT   10     29
T WW: Longitudinal Panel Weight Through 
  December 2009
     Longitudinal Panel Weight Through December 
     2009  Universe =                 All 
     persons 
V 0.0000:999999.9999 .Weight

D LGTPN2WT   10     39
T WW: Longitudinal Panel Weight Through 
  December 2010
     Longitudinal Panel Weight Through December 
     2010  Universe =                 All 
     persons 
V 0.0000:999999.9999 .Weight

D LGTPN3WT   10     49
T WW: Longitudinal Panel Weight Through 
  December 2011
     Longitudinal Panel Weight Through December 
     2011  Universe =                 All 
     persons 
V 0.0000:999999.9999 .Weight

D LGTPN4WT   10     59
T WW: Longitudinal Panel Weight Through 
  December 2012
     Longitudinal Panel Weight Through December 
     2012  Universe =                 All 
     persons 
V 0.0000:999999.9999 .Weight

D LGTPN5WT   10     69
T WW: Longitudinal Panel Weight Through 
  December 2013
     Longitudinal Panel Weight Through December 
     2013  Universe =                 All 
     persons 
V 0.0000:999999.9999 .Weight

D LGTCY1WT   10     79
T WW: Longitudinal First Calendar Year (2009) 
  Weight
     Longitudinal First Calendar Year (2009) 
     Weight  Universe =                 All 
     persons 
V 0.0000:999999.9999 .Weight

D LGTCY2WT   10     89
T WW: Longitudinal Second Calendar Year (2010) 
  Weight
     Longitudinal Second Calendar Year (2010) 
     Weight  Universe =                 All 
     persons 
V 0.0000:999999.9999 .Weight

D LGTCY3WT   10     99
T WW: Longitudinal Third Calendar Year (2011) 
  Weight
     Longitudinal Third Calendar Year (2011) 
     Weight  Universe =                 All 
     persons 
V 0.0000:999999.9999 .Weight

D LGTCY4WT   10    109
T WW: Longitudinal Forth Calendar Year (2012) 
  Weight
     Longitudinal Forth Calendar Year (2012) 
     Weight  Universe =                 All 
     persons 
V 0.0000:999999.9999 .Weight

D LGTCY5WT   10    119
T WW: Longitudinal Fifth Calendar Year (2013) 
  Weight
     Longitudinal Fifth Calendar Year (2013) 
     Weight  Universe =                 All 
     persons 
V 0.0000:999999.9999 .Weight