NAME:  Sunspot
TYPE:  Sample
SIZE:  301 observations, 4 variable

DESCRIPTIVE ABSTRACT:
 Sunspot activity from 1700 to 2000

SOURCES:
 ???

VARIABLE DESCRIPTIONS:

 1. Year_orig 
 2. Sunspots
 3. Year (1900 to 2000)
 4. Sunspot (1900 to 2000)