These are the locations in and around the home when GFCIs were first required:
1968 - Swimming Pool Underwater Lighting
1971 - Receptacles Near Swimming Pools
1973 - Outdoor Receptacles
1975 - Bathroom Receptacles
1978 - Garage Receptacles
1981 - Whirlpools and Tubs
1987 - Receptacles Near Kitchen Sinks
1990 - Receptacles in Unfinished Basements and Crawl Spaces
1993 - Receptacles Near Wet Bar Sinks
1996 - All Kitchen Counter-Top Receptacles
2005 - Receptacles Near Laundry and Utility Sinks
I thought the style of how the changes; or as to how the changes were presented has changed in the late 80's - early 90's...
BTW, here is the site I got it from. It has some interesting reading
Some History of Residential Wiring Practices in the U.S.