The 30 companies in the Dow Jones Industrial Average are expected to increase their annual dividend payout by 12.66% from a year ago and 2.93% from the first quarter, according to a survey by Dow Jones Indexes.

In total, they will pay $101.6 billion in the 12 months beginning July 1, which represents 38% of all annual dividends, Dow Jones said.

“As is the case with most information gleaned from Dow Jones Industrial Average’s component companies, this dividend data provides meaningful insight into the strategic outlook of bellwether U.S. corporations,” said David Krein, senior director of product development and analytics at Dow Jones Indexes.

“One of the market’s subtle truisms is that many investors track the DJIA for more than just its day-to-day pricing figures,” Krein said. “As we can see with the dividend information, there is much to be learned about the broad U.S. market by mining the Dow’s component companies’ data for trends and other useful indications that enable investors to make informed decisions about their investment portfolios.”