Hi, What percent of the total do the total occurrences represent? Thanks, Connie Godsey-Bell, Editor LexisNexis From: Bibliographic Framework Transition Initiative Forum [mailto:[log in to unmask]] On Behalf Of Tennant,Roy Sent: Friday, January 18, 2013 12:42 PM To: [log in to unmask] Subject: Re: [BIBFRAME] Input screens On 1/18/13 1/18/13 * 9:24 AM, "Ross Singer" <[log in to unmask]<mailto:[log in to unmask]>> wrote: How often, on aggregate, is the 100 or 700 $4 or $e used? Since I've parsed a lot of MARC records, I can tell you. Not much (and the inconsistency of the $e makes this even less useful). I can tell you exactly, as of December 1, 2012 in WorldCat: Total number of records: 287,229,344 Total occurrences of a 700 field: 80,731,356 Total occurrences of 700 $4: 24,908,408 Total occurrences of a 700 $e: 14,117,538 Roy