BELGIAN WHOLESALE PRICES FALL IN JANUARY Belgian wholesale prices fell by 5.9 pct in January from a year earlier after a 5.7 pct year on year fall in December, figures from the economics ministry show. A ministry spokesman said the wholesale price index, base 1953 and excluding value added tax, stood at 250.9 in January. This compared with 251.9 in December, 265.5 in Janua~y, 1986 and 267.2 in December, 1985. In January 1986, wholesale prices were 3.9 pct lower than a year earlier.