GERMAN RETAIL TURNOVER RISES ONE PCT IN JANUARY West German retail turnover rose a real one pct in January compared with the same month a year earlier, according to provisional data from the Federal Statistics Office. There were 26 shopping days in January this year, the same as in January 1986, a Statistics Office statement said. A Statistics Office official added retail turnover had risen by 7.6 pct in December compared with the year-ago month, a slight upward revision from the 7.5 pct increase provisionally posted.