The TABLE statement creates a row for each source of
the company name, a column for frequency counts, and a column for the percentages.
Text in quotation marks supplies a header for the corresponding row or column.
table source1='TV/Radio'
source2='Newspaper'
source3='Word of Mouth',
(n='Count'*f=7. pctn<customer>='Percent'*f=pctfmt9.) ;