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| Subject | English | Spanish |
| gen. | long-term population trend | tendencia de evolución de la población a largo plazo |
| environ. | long-term trend | tendencia a largo plazo |
| environ. | long-term trend The prevailing tendency or general direction expected for some observed value over a lengthy and extended period of time, often determined by studying and analyzing statistical data | tendencia a largo plazo |
| stat. | long-term trend | tendencia secular |