农业机械指在指定历年年底或第二年的第一季度用于农业中的轮式拖拉机和履带式拖拉机（不包括园艺拖拉机）。可耕土地包括FAO规定用于耕种临时作物的土地（双重轮作区域只算一次）、用于割草或放牧的临时草地、商品菜园或果菜园用地及临时休耕土地，不包括由于轮垦而荒废的土地。
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| 日期 | 值 | 修改, % |
|---|---|---|
| 1997 | 83 | -4.17% |
| 1996 | 86 | -9.97% |
| 1995 | 96 | 8.61% |
| 1994 | 88 | -4.43% |
| 1993 | 92 | -2.21% |
| 1992 | 94 | -7.43% |
| 1991 | 102 | 5.39% |
| 1990 | 97 | 1.87% |
| 1989 | 95 | 1.13% |
| 1988 | 94 | 4.99% |
| 1987 | 90 | 0.90% |
| 1986 | 89 |