Ranking the S&P 500 by management turnover risk

I counted C-suite departures over the past decade across the S&P 500 using automated web research across filings and press releases for all 500 companies - given Bloomberg terminal isn't going to track things like number of CEO/CFO departures. Running it through my tool, I found that Starbucks came in near the top of the list with (11 departures over the past decade. There's a cluster of companies, including Nvidia and Garmin which haven't seen any C-suite turnover over that time. Sharing full data at the link