Outmigration : 無料・フリー素材/写真
Outmigration / Plains and Prairie Potholes Landscape Conservation
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
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| 説明 | United States counties with the highest outmigration levels from 1998–2008. A county is classified as high outmigration if it had 10 percent or higher population loss from net migration. Data modified from the Atlas of Rural and Small-town America, U.S. Department of Agriculture, Economic Research Service (2011). (Abbreviations here include United States mail-code state abbreviations). |
| 撮影日 | 2013-08-29 11:25:42 |
| 撮影者 | Plains and Prairie Potholes Landscape Conservation |
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