| | | | WITHIN-YEAR | | | FOUR YEARS | | Year | ASD | Harvested Acres | Yield NASS | Yield NDVI | Production NDVI | Production NASS | NDVI- NASS Diff. % | Yield NDVI | Production NDVI | Diff. % | 1989 | 10 | 690,000 | 17.9 | 19.5 | 13,465,000 | 12,368,000 | 8.9% | 23.8 | 16,418,000 | 32.7% | | 20 | 474,000 | 19.5 | 23.4 | 11,099,000 | 9,230,000 | 20.2% | 28.5 | 13,497,000 | 46.2% | | 30 | 1,365,000 | 34.5 | 29.1 | 39,741,000 | 47,090,000 | -15.6% | 35.3 | 48,207,000 | 2.4% | | 40 | 496,000 | 18.5 | 16.3 | 8,067,000 | 9,176,000 | -12.1% | 19.9 | 9,866,000 | 7.5% | | 50 | 894,000 | 18.0 | 20.8 | 18,577,000 | 16,092,000 | 15.4% | 25.3 | 22,628,000 | 40.6% | | 60 | 1,098,000 | 29.5 | 24.6 | 26,993,000 | 32,388,000 | -16.7% | 29.9 | 32,807,000 | 1.3% | | 70 | 720,000 | 20.0 | 15.8 | 11,368,000 | 14,400,000 | -21.1% | 19.3 | 13,911,000 | -3.4% | | 80 | 480,000 | 12.0 | 13.4 | 6,414,000 | 5,760,000 | 11.4% | 16.4 | 7,876,000 | 36.7% | | 90 | 1,033,000 | 26.6 | 26.3 | 27,213,000 | 27,496,000 | -1.0% | 32.0 | 33,047,000 | 20.2% | ND | | 7,250,000 | 24.0 | 22.5 | 162,937,000 | 174,000,000 | -6.4% | 27.3 | 198,257,000 | 13.9% | 1990 | 10 | 655,000 | 31.0 | 29.1 | 19,055,000 | 20,305,000 | -6.2% | 31.4 | 20,575,000 | 1.3% | | 20 | 550,000 | 34.5 | 36.9 | 20,312,000 | 18,975,000 | 7.0% | 37.1 | 20,408,000 | 7.6% | | 30 | 1,520,000 | 41.6 | 36.2 | 54,980,000 | 63,307,000 | -13.2% | 36.6 | 55,561,000 | -12.2% | | 40 | 505,000 | 27.0 | 26.3 | 13,294,000 | 13,635,000 | -2.5% | 29.4 | 14,848,000 | 8.9% | | 50 | 975,000 | 40.5 | 39.6 | 38,635,000 | 39,490,000 | -2.2% | 39.1 | 38,086,000 | -3.6% | | 60 | 1,215,000 | 49.0 | 43.1 | 52,319,000 | 59,535,000 | -12.1% | 41.6 | 50,491,000 | -15.2% | | 70 | 700,000 | 20.5 | 18.1 | 12,695,000 | 14,350,000 | -11.5% | 23.5 | 16,419,000 | 14.4% | | 80 | 485,000 | 18.0 | 27.5 | 13,316,000 | 8,730,000 | 52.5% | 30.2 | 14,658,000 | 67.9% | | 90 | 095,000 | 35.5 | 36.4 | 39,898,000 | 38,873,000 | 2.6% | 36.7 | 40,237,000 | 3.5% | ND | | 7,700,000 | 36.0 | 34.4 | 264,504,000 | 277,200,000 | -4.6% | 35.2 | 271,284,000 | -2.1% | 1991 | 10 | 595,000 | 28.5 | 28.7 | 17,102,000 | 16,960,000 | 0.8% | 29.9 | 17,804,000 | 5.0% | | 20 | 510,000 | 28.0 | 30.4 | 15,488,000 | 14,280,000 | 8.5% | 31.9 | 16,288,000 | 14.1% | | 30 | 1,315,000 | 36.8 | 34.8 | 45,753,000 | 48,350,000 | -5.4% | 37.4 | 49,207,000 | 1.8% | | .40 | 440,000 | 25.0 | 24.2 | 10,669,000 | 11,000,000 | -3.0% | 24.4 | 10,714,000 | -2.6% | | 50 | 905,000 | 30.5 | 28.5 | 25,758,000 | 27,603,000 | -6.7% | 29.6 | 26,764,000 | -3.0% | | 60 | 1,005,000 | 38.5 | 33.3 | 33,464,000 | 38,692,000 | -13.5% | 35.6 | 35,744,000 | -7.6% | | 70 | 625,000 | 25.0 | 23.1 | 14,415,000 | 15,625,000 | -7.7% | 22.9 | 14,304,000 | -8.5% | | 80 | 585,000 | 22.0 | 25.6 | 14,990,000 | 12,870,000 | 16.5% | 26.1 | 15,244,000 | 18.4% | | 90 | 870,000 | | | 29,313,000 | 26,970,000 | 8.7% | 36.1 | 31,370,000 | 16.3% | ND | | 6,850,000 | 31.0 | 30.2 | 206,952,000 | 212,350,000 | -2.5% | 31.7 | 217,438,000 | 2.4% | 1992 | 10 | 864,000 | 39.5 | 36.4 | 31,481,000 | 34,093,000 | -7.7% | 27.0 | 23,368,000 | -31.5% | | 20 | 775,000 | 35.2 | 37.7 | 29,239,000 | 27,270,000 | 7.2% | 29.1 | 22,516,000 | -17.4% | | 30 | 1,806,000 | 51.1 | 50.3 | 90,897,000 | 92,237,000 | -1.5% | 48.6 | 87,839,000 | -4.8% | | 40 | 625,000 | 36.0 | 34.0 | 21,220,000 | 22,523,000 | -5.8% | 23.2 | 14,491,000 | -35.7% | | 50 | 1,096,000 | 37.4 | 39.3 | 43,101,000 | 41,024,000 | 5.1% | 31.5 | 34,563,000 | -15.7% | | 60 | 1,287,000 | 48.2 | 46.3 | 59,584,000 | 62,000,000 | -3.9% | 42.4 | 54,529,000 | -12.1% | | 70 | 827,000 | 34.5 | 32.2 | 26,598,000 | 28,507,000 | -6.7% | 20.4 | 16,873,000 | -40.8% | | 80 | 704,000 | 32.7 | 38.2 | 26,884,000 | 23,007,000 | 16.9% | 29.8 | 20,956,000 | -8.9% | | 90 | 1,116,000 | 46.2 | 43.7 | 48,746,000 | 51,539,000 | -5.4% | 38.3 | 42,744,000 | -17.1% | | | 9,100,000 | | 41.5 | 377,750,000 | 382,200,000 | -1.2% | 34.9 | 317,880,000 | -16.8% |
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