So says Michael Gigliotti & Associates (Gloucester MA) which held a series of technical workshops in that nation in August. By contrast paper/paperboard ($900 million) and metal ($700 million) are experiencing slow growth. Glass ($200 million) is growing the slowest of all. Total packaging material sales reached $2.5 billion in 1994 or about $60 per person compared to over $300 per person in North America Europe or Japan. The country's 43 million consumers are sharply divided into 7 million upper-income consumers 13 million middle-income consumers and 23 million very low income consumers MGA reports.