Portugal Animal Numbers, Swine Sow Beginning Stocks by Year
| Market Year | Sow Beginning Stocks | Unit of Measure | Growth Rate |
| 1960 | 0 | (1000 HEAD) | NA |
| 1961 | 0 | (1000 HEAD) | NA |
| 1962 | 0 | (1000 HEAD) | NA |
| 1963 | 0 | (1000 HEAD) | NA |
| 1964 | 0 | (1000 HEAD) | NA |
| 1965 | 0 | (1000 HEAD) | NA |
| 1966 | 0 | (1000 HEAD) | NA |
| 1967 | 0 | (1000 HEAD) | NA |
| 1968 | 0 | (1000 HEAD) | NA |
| 1969 | 0 | (1000 HEAD) | NA |
| 1970 | 0 | (1000 HEAD) | NA |
| 1971 | 0 | (1000 HEAD) | NA |
| 1972 | 0 | (1000 HEAD) | NA |
| 1973 | 0 | (1000 HEAD) | NA |
| 1974 | 947 | (1000 HEAD) | NA |
| 1975 | 1000 | (1000 HEAD) | 5.60% |
| 1976 | 1008 | (1000 HEAD) | 0.80% |
| 1977 | 214 | (1000 HEAD) | -78.77% |
| 1978 | 222 | (1000 HEAD) | 3.74% |
| 1979 | 221 | (1000 HEAD) | -0.45% |
| 1980 | 232 | (1000 HEAD) | 4.98% |
| 1981 | 257 | (1000 HEAD) | 10.78% |
| 1982 | 255 | (1000 HEAD) | -0.78% |
| 1983 | 254 | (1000 HEAD) | -0.39% |
| 1984 | 269 | (1000 HEAD) | 5.91% |
| 1985 | 286 | (1000 HEAD) | 6.32% |
| 1986 | 354 | (1000 HEAD) | 23.78% |
| 1987 | 334 | (1000 HEAD) | -5.65% |
| 1988 | 310 | (1000 HEAD) | -7.19% |
| 1989 | 309 | (1000 HEAD) | -0.32% |
| 1990 | 341 | (1000 HEAD) | 10.36% |
| 1991 | 354 | (1000 HEAD) | 3.81% |
| 1992 | 344 | (1000 HEAD) | -2.82% |
Source: United States Department of Agriculture
See also: Commodity prices
See also: Agricultural prices
See also: Commodities market
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