6	-
      4	--[none specified: empty or whitespace]--
     43	ArchitextSpider
     11	BackRub/2.1 backrub@backrub.stanford.edu http://backrub.stanford.edu/
      1	BackRub/2.1 backrub@google.stanford.edu http://google.stanford.edu/
      1	BackRub/2.1 backrub@google.stanford.edu http://google.stanford.eduu/
     25	Crawler V 0.2.1 admin@crawler.de
      1	EchO!/2.0
      1	GAIS Robot/1.1A1
      8	Googlebot/1.0 googlebot@googlebot.com http://googlebot.com/
      2	Gulliver/1.2
      2	htdig/3.0.8b2 (andrew@contigo.com)
      5	htdig/3.1.0b4 (HSH@taxon.demon.nl)
     12	htdig/3.1.0b4 (webmaster@javawoman.com)
     16	ia_archiver
      1	ia_archiver/1.6
      2	InfoSeek Sidewinder/0.9
      3	Java1.1.4
      1	Java1.1.5
     54	KIT-Fireball/2.0
      1	LinkAlarm/1.00
      2	LinkAlarm/1.04
      2	LinkAlarm/1.04b
     13	LinkWalker
      2	lwp-trivial/1.26
     13	Lycos_Spider_(T-Rex)
     15	Mercator-1.0
      1	Mozilla/3.0 (OS/2; U)
      2	Mozilla/3.01 (Win95; I)
    154	Mozilla/4.0 (compatible; MSIE 4.01; MSIECrawler; Windows 95)
     15	Mozilla/4.0 (compatible; MSIE 4.01; MSIECrawler; Windows NT)
      4	Mozilla/4.0 (compatible; MSIE 4.0; MSIECrawler; Windows 95)
      2	Mozilla/4.0 (compatible; MSIE 4.0; Windows NT; Site Server 3.0 Robot) CGA
      2	Mozilla/4.0 (compatible; MSIE 4.0; Windows NT; Site Server 3.0 Robot) Pfizer, Inc.
      2	Mozilla/4.0 (compatible; MSIE 4.0; Windows NT; Site Server 3.0 Robot) Tele-Communications, Inc.
      1	Mozilla/4.0 (compatible; MSIE 5.0b1; MSIECrawler; Windows NT)
      1	Mozilla/4.0 (compatible; MSIE 5.0b2; Windows NT; AIM Package Version 1.07.3; MSIECrawler)
      1	Mozilla/4.05 [en] (Win95; U; Netcaster)
      1	Mozilla/4.07 [de] (Win95; I; Netcaster)
      1	Namecrawler/1.0
      3	NetIntellect (3.0; WinNT; I)
      5	NetMechanic
      2	Openfind Robot/1.1A1
      1	Robot SuperSnooper
      2	Robot@SuperSnooper.Com
      2	Scanner 2.101
      3	Scooter/1.0 scooter@pa.dec.com
      2	Scooter/2.0 G.R.A.B. V1.0.3
     15	Scooter/2.0 G.R.A.B. V1.1.0
      8	Scooter/2.0 G.R.A.B. X2.0
     56	Slurp/2.0 (slurp@inktomi.com; http://www.inktomi.com/slurp.html)
      1	Spider5
     12	Ultraseek
      1	vspider/3.5
      5	WebNerd/0.1
      2	WiseWire
      1	WiseWire-Alpha12
      2	WiseWire-HotSpider-1.0
     11	WiseWire-Spider
      5	WiseWire-Spider-1.0
     11	WiseWire-Spider2
      4	WiseWire-Widow-1.0
      1	WiseWireSpider2
      1	wURLwind-Reaper