In 1997, Utah had 3,318 wholesale establishments, with sales of $23 billion. Utah's wholesale business had personal income exceeding $1.6 billion in 1997, when personal income from retail sales totaled $2.2 billion. Retail sales in 1997 totaled over $20 billion, with the 3rd-highest growth rate in the country for sales between 1992 and 1997. Retail and wholesale trading establishments are heavily concentrated in the Salt Lake City-Ogden metropolitan area. The leading wholesale trade categories were machinery, electrical goods, hardware, professional equipment, and construction materials. Foreign exports of Utah's manufactured goods totaled $3 billion in 1998.