NAPL Study Indicates Sustainable Turnaround The Printing Business Index (PBI) of the National Association for Printing Leadership (NAPL), the association’s broadest measure of print activity, was 56.3 in July 2004. This marks the 13th consecutive month that the index has been above the critical 50.0 mark – the point at which more printers report activity is picking up than report activity is slowing down. “The fact that the PBI has remained above 50.0 for more than a year is a strong in...