Vacancies at the largest US retail centers rose to the highest level in at least a decade as unemployment and “inconsistent” consumer spending reduced demand from tenants, Reis Inc said.

Vacancies at the biggest malls, known as regional and super-regional centers, increased to 8.9% in the first quarter from 8.8% in the previous three months and 7.9% a year earlier, the real estate research company said in a statement. The rate was the highest since 2000, when New York-based Reis began tracking the data., Wall Street Journal