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2004 Yale University, New Haven, Connecticut 06520 |
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Factsheets: |
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Comparability of data over time: these links show previous factsheets as originally published. They have not been adjusted to show corrections or changes in how data have been classified or categorized. If you are interested in making comparisons over time, it is better to go to the "Ongoing Book of Numbers" (see the list on the left above) to look for a table that shows a multi-year series. |
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