Table 10. Characteristics of numeric variables for the file (solid92.dat) containing the solid fuel
statistics from the United Nations Energy Statistics Database
| Number of | Minimum | Maximum | ||
| Variable | observations | value | value | Mean |
| COUNTRY | 29441 | 4.00 | 894.00 | 432.55 |
| YEAR | 29441 | 1950.00 | 1992.00 | 1972.88 |
| QUANTITY | 29441 | -30755.00 | 1116369.00 | 5426.74 |