It very well could have been 20 years ago... I still have 3 EFI model Samurais, a 1991, 1992, & 1993. I have owned the 1993 over 20 years. It is mildly lifted and locked with 31 inch Swampers & an 8v 1.6 with factory EFI. The '91 and '92 are mostly stock. I am finishing up a 1988.5 project to sell to a buddy for a hunting rig. I hang on to the EFI models when I get one. I did sell one '91 that I had owned for 15 years to my uncle who had been wanting to buy one for years.
Nice to hear you are still vertical. Take care of yourself.