NH-NL historical data

I’m intrigued by what @geewhiz112 and @las9427 mentioned about the New-High/New-Low indicator when I said I was suspending my Downside Warnings for assessment. I have found someone offering data going back to 1980 for a fee (McClellan), but I first wanted to check with y’all to see if anyone has access to the data. I would want back at least to 2001. Let me know if any ideas. Thanks!