The 4-digit (e.g. XXYY, week/year) date coding didn't start until 2000. Before that it was two digits for week and a year digit, so 33rd week of probably 1993.
'91 Toyota Pickup
'09 Kawasaki KLR650
'12 Gunnar Rockhound 29
"To live is to suffer, to survive is to find some meaning in the suffering." -- Friedrich Nietzsche