WEST GERMAN COCOA GRINDINGS WITHIN EXPECTATIONS West German first quarter cocoa grindings, which rose 2.9 pct from the same 1986 quarter, were within expectations, trade sources said. They described the results, announced Saturday, as normal and unspectacular, considering that the grind in the fourth quarter was rather high and some was carried over into the first quarter. Grindings rose to 55,190 tonnes from 53,643 in the first 1986 quarter. A spokesman for the Confectionery Industry Association said that West German grindings are expected to stay relatively high in comparison to other West European countries.