| File Name | File Size | File Format |
|---|---|---|
| In-depth | ||
| npid01.zip | 86.5 KB | Hierarchical ASCII data (.dat) |
| npid01dt.zip | 71.9 KB | Stata dataset (.dta) |
| npid01fl.zip | 89.5 KB | Flat ASCII data (.dat) |
| npid01sd.zip | 102 KB | SAS dataset (.sas7bdat) |
| npid01sv.zip | 71.8 KB | SPSS dataset (.sav) |
| Other Data | ||
| npod01.zip | 81.7 KB | Hierarchical ASCII data (.dat) |
| npod01dt.zip | 63.5 KB | Stata dataset (.dta) |
| npod01fl.zip | 76.6 KB | Flat ASCII data (.dat) |
| npod01sd.zip | 94.9 KB | SAS dataset (.sas7bdat) |
| npod01sv.zip | 63.7 KB | SPSS dataset (.sav) |