Wish it had the 70s, or ideally, the whole 20th century. The 80s-2010s has been a period of unusually low inflation and consistent market returns, buoyed by the end of the Cold War and entry of the developing world into the world economy. There's a good chance that we revert to the mean going forwards and see much more geopolitical instability and resource constraints.
IIRC the book ‘Common Sense on Mutual Funds’ has data going that far back with charts. I believe the period from the start of the 20th century until the 70s had similar inflation adjusted returns. However, for the early data I think it was really just measuring the largest companies in the country that made up the original Dow. Although, the author argues that’s a fine comparison because the 30 largest companies in the country represent the large majority of the top 500 index in terms of cap today— he further argues that over the long term small cap and large cap stocks give similar returns regardless.