Data record layout  As one line of 20 columns
Serial number width  9
q1  Do you own a bicycle? Single
(1)
Yes 1
No 2
Not sure 3
q2  Which bicycle magazines do you read? Multi
(1*5)
Bike Weekly 1
On My Bike 2
On Two Wheels 3
Biking For Fun 4
Bikers Monthly 5
None of these 6 SingleOnly
q1 is Yes
q3  How often do you ride your bicycle? Single
(1)
Every day 1
Most days 2
Weekly 3
Monthly 4
Less often 5
Not sure/varies 6
q4  How many years have you been riding a bicycle? Integer
(2)
gender  Gender Single
(1)
Male 1
Female 2
age  Age group Single
(1)
16-24 1
25-34 2
35-44 3
45-54 4
55+ 5