* USPopulation Example
  Read U.S. population data from 1900 to 1999;

options linesize=70 nodate pageno=1;
data states;
   infile 'c:/datasets/us-population.txt' firstobs=4;
   input date ANYDTDTE12. pop COMMA13. pop_change COMMA11. percent_change;

proc sort;
   by date;

proc print;
   var date pop pop_change percent_change;
   format date YYMMDD.;

run;
quit;