The first commercial designs were introduced in passenger automobiles during the 1970s with limited success. Broad commercial adoption of airbags occurred in many markets during the late 1980s and early 1990s with a driver airbag, and a front passenger airbag as well on some cars; and many modern vehicles now include four or more units.
The year was 1991, so that was in reference to the front passenger airbag I'd say.

23 years. It's a meaningless stat for Sunday but damn.