The University of Michigan’s index of consumer sentiment tumbled 10.5% on a monthly basis in March and plunged 27.1% over the past year. The preliminary report released Friday shows that consumers’ expectations of annual inflation climbed to 3.9% from 3.5%, the largest monthly jump since 1993.

U.S. President Donald Trump has made numerous tariff threats since returning to office on January 20, ranging from a universal duty on imports to targeted tariffs on specific sectors or countries, in a bid to get others to meet his policy demands.

Trump said he would not change his mind about imposing "reciprocal tariffs" on other countries that have their own tariffs on U.S. goods.