Indianapolis-based National Wine & Spirits, Inc. reported its financial results for the quarter ended September 30, 2000. Revenue for the quarter increased 20.1% to $156.6 million compared to $130.4 million in the prior year, meeting expectations. Operating income increased 12.2% to $2.9 million vs. $2.6 million in the prior year.Earnings for the quarter did not keep pace with the sales increase for several reasons: