Buffett talked about U.S. trade, the stock market and his own future at Berkshire Hathaway's annual shareholder meeting. Here are the highlights.

As of the March current population survey — which is used each month to generate unemployment and other labor-market data — there were just under 6,000 95-year-olds in the workforce, out of a population of nearly 188,000. Buffett’s current cohort of 94-year-olds has just over 7,000 people in the labor market, out of a population of 243,000.