fserow2006:
f00
fserow2006:
f01_income
fserow2006:
f02_freguency
fserow2006:
f03_notbike
fserow2006:
f04_purpose
fserow2006:
f05_area
fserow2006:
f06_threatened
fserow2006:
f07_helmet
fserow2006:
f08_helmetusage
fserow2006:
f09_lanes
fserow2006:
f10_notuselanes
fserow2006:
f11_injury
fserow2006:
f12_motorinjury