GREAT NORTHERN NEKOOSA <GNN> 1ST QTR NET Shr 1.59 dlrs vs 54 cts Net 43.3 mln vs 13.9 mln Revs 566.7 mln vs 487.8 mln Avg shrs 27.2 mln vs 25.9 mln NOTE: 1986 figures restated for adoption of financial accounting standards board statement 87 "employer's accounting for pensions." Net 1986 and 1987 includes 900,000 dlrs of investment tax credits in 1987, and 3.1 mln dlrs in 1986.