OK, well, I decided to just suck it up, go into the game manually and just put together the stupid chart myself, and this is what I came up with:
Pretty fascinating, the sudden changes across several attributes, some unrelated, in 1960 and again in 1993. Also, interesting how stolen bases went from normal to rare in 1940, when IRL they got rare in 1930, plus the rate of SB in 1987 was triple that of 1953, and in fact the highest since 1919, whereas in the game it stayed "rare".
Not sure what to make of that ...