CHEYENNE, Wyo. (AP) — Wyoming state Treasurer Mark Gordon says the state's investments have grown in one year by $1.17 billion.

Gordon says it's the best one-year investment performance in the past 10 years and the state's total investment assets are now up to nearly $20.8 billion.

From July 1, 2016, through this past June 30, four state permanent investment funds had returns ranging from 8.4 percent to 9.4 percent.

Wyoming uses income from its investments to help fund its day-to-day government operations.

Last year, voters approved a constitutional amendment allowing the state to invest more of its money in higher-earning stocks.