The following sas program is sumbitted :
data work.info;
infile 'datafike.txt';
input @1 company $20. @25 state$2.@;
if state=' '  then input @30 year;
else input @30 city year;
input numemployees;
run;

How many raw data records are read during each iteration of the data step?

表示不清楚raw data records 指的是啥？是变量数目吗？还是观测数目？好像都不是。。