Not all Rank Order pages include the same number of entries because information for a particular field is not available for all countries. In addition, not all data fields are suitable for displaying as Rank Order pages, such as those containing textual information. Textual information is more readily viewed by clicking on the Field Listing icon next to the Data field title. The other icon next to the data field title provides the definition of the field. All of the ‘Rank Order’ pages can be downloaded as tab-delimited data files and can be opened in other applications such as spreadsheets and databases. To save a Rank Order page in a spreadsheet, first click on the ‘Download Datafile’ choice above the Rank Order page you selected; then, at the top of your browser window, click on 'File' and 'Save As'. After saving the file, open the spreadsheet, find the saved file, and 'Open' it. Additional Rank Order pages being considered for future updates of the Factbook Web site include: Median age Literacy Population below the poverty line Highways Waterways Airports This page was last updated on 21 October, 2003 ===================================================================== Appendixes Appendix A - Abbreviations Appendix B - International Organizations and Groups Appendix C - Selected International Environmental Agreements Appendix D - Cross-Reference List of Country Data Codes Appendix E - Cross-Reference List of Hydrographic Data Codes Appendix F - Cross-Reference List of Geographic Names ====================================================================== Notes and Definitions In addition to the updated information, The World Factbook printed version features seven new entries. In the People category, an entry has been added for Median age. In the Economy category, entries have been added for Oil - production, Oil - consumption, Oil - exports, Oil - imports, Oil - proved reserves, and Natural gas - proved reserves. The web site version features four additional entries: Natural gas - production, Natural gas - consumption, Natural gas - exports, and Natural gas - imports. Revision of some individual country maps, first introduced in the 2001 edition, is continued in this edition. The revised maps include elevation extremes and a partial geographic grid. Several regional maps have also been updated to reflect boundary changes and place name spelling changes. Abbreviations This information is included in Appendix A: Abbreviations, which includes all abbreviations and acronyms used in the Factbook, with their expansions.