下面这些牛x的内容都是从一个老外的网站上面抄来的，确切的说，是一个加拿大的SEO公司的网站上面的信息，SEO博客并不知道这是华人发布的还是洋人发布的，暂且就将其称作老外网站算了。
老外网站很详细的记录了Google的PR更新历史，不知道为什么咱们的牛人就没有注意统计这方面的内容，总之是老外统计了，我们买有统计，于是SEO博客就把这个东西给转过来了，希望更多SEO届的同仁在今后主动记录、补充表格中的东东，也希望有时间的SEO把E文翻译一下，让初级的SEO和E文比较垃圾的SEO能够看得明白。这篇文章的原载地址附在后面，有兴趣的直接过去看看：http://www.seocompany.ca/pagerank/page-rank-update-list.html，同时声明，SEO博客仅仅摘抄了原文中的表格，并做了适当编辑。呵呵！
Page Rank Export List History Table
| Year | Date | Info | Days |
| 2008 | Waiting | TBPR Export Estimation* May 21 | 69 |
| 2008 | Feb 26 TBPR Export: Toolbar Pagerank Export. Feb 26 | TBPR & BL Export | 47/47 |
| 2008 | Jan 10 TBPR Export: Toolbar Pagerank Export. Jan 10 | TBPR & BL Export | 74/74 |
| 2007 | Oct 28 TBPR Export: Toolbar Pagerank Export. Oct 28 | TBPR & BL Export | 181/181 |
| 2007 | Apr 30 TBPR Export: Toolbar Pagerank Export. Apr 30 | TBPR & BL Export | 98/98 |
| 2007 | Jan 25 Algorithm Update: Algorithm Update.Jan 25 | Algo update - Reduce Googlebomb Impact | |
| 2007 | Jan 25 TBPR Export: Toolbar Pagerank Export. Jan 25 | TBPR & BL Export | 18/18 |
| 2007 | Jan 10 TBPR & BL Export: Toolbar Pagerank & BL Export. Forum coverage: http://www.mattcutts.com/blog/infrastructure-status-january-2007/ Estimated Jan 28/2007 Jan 10 | TBPR & BL Export | 101/101 |
| 2006 | Sep 28 TBPR & BL Export: Toolbar Pagerank & BL Export. Sep 28 | TBPR & BL Export | 76/76 |
| 2006 | Jul 13 TBPR & BL Export: Toolbar Pagerank & BL Export. Jul 13 | TBPR & BL Export | 100 |
| 2006 | Apr 05 TBPR Export: Toolbar Pagerank Export. Apr 04 | TBPR Export | 45 |
| 2006 | Mar 28/2006 TB Program Update: Google launched a new toolbar update (v 2.0f) for Fire Fox. Apr 07 | TB Program Update FF v2.0f | |
| 2006 | Feb 18 TBPR & BL Export: Toolbar Pagerank & BackLink Export. Feb 18 | TBPR & BL Export | 122/60 |
| 2006 | Mar 30/2006 TB Program Update: Google launched a new toolbar update (v 4.0.513.2948 Beta) for IE.Jan 30 | TB Program Update IE v4.0.513.2984 Beta | |
| 2006 | Jan 4 to Mar 27 Infra Update: Infrastructure update.Jan 4 | Infra Update - BigDaddy | |
| 2005 | Dec 19 GDPR & BL Export: Google Directory & BackLink Export.Dec 19 | GDPR & BL Export | 106 |
| 2005 | Nov 04 to Nov 18 Algo Update: Algorithm Update - Jagger 3.Nov 04 | Algo Update - Jagger 3 | |
| 2005 | Oct 27 to Nov 06 Algo Update: Algorithm Update - Jagger 2.Oct 27 | Algo Update - Jagger 2 | |
| 2005 | Oct 19 TBPR & BL Export: Google Toolbar Pagerank & BackLink Export. Oct 19 | TBPR & BL Export | 97/45 |
| 2005 | Oct 16 to Nov 07 Algo Update: Algorithm Update - Jagger 1.Oct 16 | Algo Update - Jagger 1 | |
| 2005 | Sep 4 GDPR & BL Export: Google Directory Pagerank & BackLink export.Sep 04 | GDPR & BL Export | 85 |
| 2005 | Jul 14 PR Update:Toolbar Pagerank & BackLink update. Jul 14 | TBPR & BL Update | 83/33 |
| 2005 | Jun 11 GDPR Update: Goggle Directory Pagerank update. Jun 11 | GDPR Update | 18 |
| 2005 | May 27 BL Update: Backlink update.Jun 08 | BL Update | |
| 2005 | May 27 TBPR Goes Blank: Toolbar PageRank Goes Grey Everywhere For 3 Days. Most claim it is dead. May 27 | TBPR Goes Grey For 3 Days | |
| 2005 | May 24 GDPR & BL Update: Google PageRank & Backlink Update. May 24 | GDPR & BL Update | 32 |
| 2005 | Apr 22 TBPR, GDPR & BL Update:Toolbar PageRank, Google Directory & Backlink update.Apr 22 | TBPR, GDPR & BL Update | 111/50 |
| 2005 | Mar 04/2005 BL Update:Backlink Update. Mar 04 | BL Update | |
| 2005 | Mar 3/2005 GDPR Update:Google Directory PR Update.Mar 03 | GDPR Update | 28 |
| 2005 | Feb 23/2005 TB Program Update: Google launched a new toolbar update (v 3.0.119.6) with a change algorithm for computing the checksum. Feb 23 | TB Program Update IE 3.0.119.6 | |
| 2005 | Feb 04 GDPR Update:Google Directory PR Update. Feb 04 | GDPR Update | 24 |
| 2005 | Feb 03 BL & Algo Update:Google Backlink & Algorithm update. Lots of SEO sites seemed to just drop out of the SERP. Feb 03 | BL & Algo Update | |
| 2005 | Jan 10 GDPR Update:Google Directory PageRank Update. Jan 10 | GDPR Update | 88 |
| 2005 | Jan 1 TBPR & BL Update:Toolbar PageRank & Backlink Update. Jan 1 | TBPR & BL Update | 87/16 |
| 2004 | Dec 16 BL Update:Google Backlink update. Dec 16 | BL Update | |
| 2004 | Nov 25 BL Update:Google Backlink update.Nov 25 | BL Update | |
| 2004 | Oct 28 GDPR Update:Google Directory PR Update? Oct 28 | GDPR Update? | ?? |
| 2004 | Oct 28 BL Update:Google Backlink update. Oct 28 | BL Update | |
| 2004 | Oct 18 BL Update Roll Back:Oct 16th Backlink Update Was Rolled Back. Oct 18 | BL Update Rolled Back | |
| 2004 | Oct 17 GDPR Update:Google Directory update. Oct 17 | GDPR Update | 67 |
| 2004 | Oct 16 BL Update:Backlink update - Was rolled back Oct 18. Oct 16 | BL Update | |
| 2004 | Oct 6/2004 Toolbar Update: Longest wait for a toolbar update. 106 days. Oct 6 | TBPR Update; No BL Update | 106 |
| 2004 | Sept 10/2004 Backlinks (BL) Update: Fourth BL update since the last June 23 PR toolbar update. Sept 10 | BL Update | |
| 2004 | Sept 8/2004 Toolbar Update: Google launched a new toolbar update (v 2.0.114). Sept 8 | TB Program Update | |
| 2004 | Aug 30/2004 Backlinks (BL) Update: Third BL update since the last June 23 PR toolbar update.Aug 30 | BL Update | |
| 2004 | Aug 10/2004 Google Directory Update: First Google PR update since the last June 23 PR toolbar update.Aug 10 | GDPR Update | 158? |
| 2004 | Aug 9/2004 Backlinks (BL) Update: Second BL update since the last June 23 PR toolbar update. Aug 9 | BL Update | |
| 2004 | July 16/2004 Backlink (BL) Update: First BL updated since the June 23 PR update; No PR update; discussion on the forums of Google going to quarterly toolbar PR update. Jul 16 | BL Update | |
| 2004 | From this date to May 6th 2003 Web Rank Info's list from http://www.webrankinfo.com/google/google-dance/historique-google-dance.php is the source for the dates used. Web Rank Info's dates are a bit different than I found from other sources, (they are based on EU time and use a Monday date if the update happened over the weekend), but they are more complete. I changed the EU Jun 23 date to Jun 22. Forum coverage: Jun 22 | TBPR & BL Update | 22 |
| 2004 | May 31/2004 Toolbar PR & BL Update: Backlink and toolbar PR update. May 31 | TBPR & BL Update | 38 |
| 2004 | Apr 7/2004 Toolbar PR & BL Update: Backlink and toolbar PR update.Apr 23 | TBPR & BL Update | 16 |
| 2004 | Apr 7/2004 Toolbar PR & BL Update: Backlink and toolbar PR update.Apr 7 | TBPR & BL Update | 22 |
| 2004 | Mar 16/2004 Toolbar PR & BL Update: Backlink and toolbar PR update. Google Directory PR update also http://www.webmasterworld.com/forum3/10706.htm . Mar 16 | TBPR, GDPR & BL Update | 50 |
| 2004 | Feb 11/2004 Algorithm Update: Algorithm Update, perhaps BL Update. No TBPR change. Feb 11 | Brandy: Algo Update | |
| 2004 | Jan 26/2004 BL TBPR Update: TBPR & BL Update. Jan 26 | TBPR & BL Update | 15 |
| 2004 | Jan 11/2004 Toolbar PR & BL Update: TBPR & BL update. Jan 11 | Austin: TBPR & BL Update | 19 |
| 2003 | Jan 23/2004 Toolbar PR Update: Toolbar PR update. Dec 23 | TBPR & BL Update | 17 |
| 2003 | Dec 6/2003 Toolbar PR Update: Toolbar PR update. Dec 6 | TBPR Update | 20 |
| 2003 | Nov 16-24/2003 TBPR, BL & Algo Update: Toolbar PR, Backlinks and Algorithm Update. Nov 16 | Florida: TBPR, BL & Algo Update | 21 |
| 2003 | Oct 26 | 35 | |
| 2003 | Oct 2/2003 GDPR Update Google Directory Update. Last GDPR Update was 7 months ago. Oct 2 | GDPR Update | |
| 2003 | Sept 21 | 23 | |
| 2003 | Aug 29 | 21 | |
| 2003 | Aug 8 | 54 | |
| 2003 | Jun 15 | 40 | |
| 2003 | May 6 | 25 | |
| 2003 | All the below dates are from eSavvyMarketing Apr 11 | 36 | |
| 2003 | Mar 6 | 41 | |
| 2003 | Jan 25 | 24 | |
| 2003 | Jan 1 | 35 | |
| 2002 | Nov 27 | 27 | |
| 2002 | Oct 31/2002 Toolbar PR & BL Update: Toolbar PR & BL Update. Oct 31 | TBPR & BL Update | 35 |
| 2002 | Sept 26/2002 TBPR, GDPR & BL Update: Toolbar PR, Google Directory PR & Backlink Update. Sept 26 | TBPR GDPR & BL Update | 36 |
| 2002 | Aug 21/2002 TBPR, GDPR & BL Update: Toolbar PR, Google Directory PR & Backlink Update. Aug 21 | TBPR GDPR & BL Update | 27 |
| 2002 | July 25/2002 Toolbar PR & BL Update: Toolbar PR & BL Update. Jul 25 | TBPR & BL Update | 32 |
| 2002 | Jun 23/2002 Toolbar PR & BL Update: Toolbar PR & BL Update.Jun 23 | TBPR & BL Update | 30 |
| 2002 | May 24 | 29 | |
| 2002 | Apr 25 | 19 | |
| 2002 | Apr 6 | 45 | |
| 2002 | Feb 20 | 26 | |
| 2002 | Jan 25 | 29 | |
| 2001 | Dec 27 | 32 | |
| 2001 | Nov 25 | 28 | |
| 2001 | Oct 28 | 42 | |
| 2001 | Sept 16 | 28 | |
| 2001 | Aug 19 | 31 | |
| 2001 | Jul 19 | 30 | |
| 2001 | Jun 22 | 32 | |
| 2001 | May 21 | 28 | |
| 2001 | Apr 23 | 28 | |
| 2001 | Mar 26 | 35 | |
| 2001 | Feb 19 | 29 | |
| 2001 | Jan 21 | 33 | |
| 2000 | Dec 19 | 31 | |
| 2000 | Nov 18 | 27 | |
| 2000 | Oct 22 | 54 | |
| 2000 | Aug 29 | 34 | |
| 2000 | Jul 26 | Unknown |
