| 世界におけるコメ、コムギ、コーン及びダイズの価格（実質価格, $/ﾄﾝ, 1961〜2005年） | ||||||
| 年 | コメ | コムギ | コーン | ダイズ | 米国のCPI | |
| 1961 | 997.25 | 429.25 | 348.28 | 744.74 | 13.70 | |
| 1962 | 1104.21 | 464.82 | 351.71 | 665.06 | 13.83 | |
| 1963 | 1022.00 | 461.38 | 383.62 | 720.57 | 14.02 | |
| 1964 | 970.66 | 476.13 | 385.37 | 711.27 | 14.20 | |
| 1965 | 944.29 | 412.51 | 382.89 | 743.88 | 14.43 | |
| 1966 | 1116.27 | 423.35 | 390.82 | 781.05 | 14.84 | |
| 1967 | 1444.52 | 429.89 | 354.03 | 674.87 | 15.30 | |
| 1968 | 1283.94 | 394.15 | 298.02 | 609.56 | 15.94 | |
| 1969 | 1100.98 | 347.52 | 309.12 | 561.64 | 16.81 | |
| 1970 | 804.60 | 308.04 | 327.83 | 603.92 | 17.77 | |
| 1971 | 702.55 | 332.74 | 314.25 | 622.15 | 18.55 | |
| 1972 | 782.98 | 364.61 | 291.10 | 672.00 | 19.15 | |
| 1973 | 1458.28 | 688.33 | 479.25 | 1310.36 | 20.34 | |
| 1974 | 2397.89 | 795.64 | 586.20 | 1125.51 | 22.58 | |
| 1975 | 1473.67 | 605.34 | 485.11 | 815.96 | 24.64 | |
| 1976 | 974.86 | 510.33 | 430.73 | 830.66 | 26.06 | |
| 1977 | 981.38 | 371.95 | 343.57 | 940.86 | 27.76 | |
| 1978 | 1233.86 | 428.14 | 337.34 | 812.25 | 29.87 | |
| 1979 | 1005.36 | 481.73 | 347.55 | 794.86 | 33.26 | |
| 1980 | 1148.96 | 457.53 | 333.07 | 702.98 | 37.74 | |
| 1981 | 1159.61 | 420.05 | 313.67 | 627.64 | 41.64 | |
| 1982 | 663.70 | 362.42 | 244.55 | 500.53 | 44.20 | |
| 1983 | 606.79 | 344.70 | 298.06 | 568.79 | 45.62 | |
| 1984 | 530.02 | 320.40 | 285.38 | 541.05 | 47.59 | |
| 1985 | 441.12 | 275.83 | 227.91 | 412.21 | 49.29 | |
| 1986 | 389.75 | 229.08 | 174.87 | 376.30 | 50.20 | |
| 1987 | 412.06 | 216.78 | 145.14 | 375.86 | 52.04 | |
| 1988 | 511.64 | 267.83 | 197.37 | 516.10 | 54.19 | |
| 1989 | 527.73 | 298.22 | 196.07 | 434.86 | 56.80 | |
| 1990 | 452.10 | 226.47 | 182.54 | 365.94 | 59.87 | |
| 1991 | 470.71 | 206.13 | 172.26 | 334.73 | 62.39 | |
| 1992 | 416.50 | 234.98 | 162.16 | 326.38 | 64.27 | |
| 1993 | 358.44 | 212.06 | 154.16 | 347.74 | 66.19 | |
| 1994 | 396.94 | 220.83 | 158.77 | 338.20 | 67.88 | |
| 1995 | 459.55 | 253.70 | 176.84 | 321.12 | 69.81 | |
| 1996 | 470.39 | 288.34 | 228.92 | 386.00 | 71.87 | |
| 1997 | 411.42 | 217.18 | 159.38 | 381.76 | 73.52 | |
| 1998 | 409.06 | 168.89 | 136.10 | 298.90 | 74.66 | |
| 1999 | 326.25 | 146.83 | 118.32 | 229.21 | 76.31 | |
| 2000 | 258.24 | 144.53 | 111.84 | 232.00 | 78.88 | |
| 2001 | 212.89 | 156.31 | 110.46 | 208.02 | 81.12 | |
| 2002 | 232.79 | 180.24 | 120.54 | 229.05 | 82.40 | |
| 2003 | 236.66 | 173.39 | 124.80 | 276.75 | 84.28 | |
| 2004 | 284.05 | 181.31 | 129.18 | 319.94 | 86.53 | |
| 2005 | 321.72 | 170.40 | 110.00 | 249.46 | 89.46 | |
| 2006 | 328.68 | 207.61 | 131.67 | 235.44 | 92.34 | |
| 2007 | 349.99 | 268.70 | 171.94 | 334.09 | 94.98 | |
| 2008 | 678.89 | 338.19 | 267.54 | 468.37 | 98.62 | |
| 2009 | 599.74 | 227.36 | 166.81 | 385.17 | 98.27 | |
| 2010 | 585.44 | 197.97 | 165.74 | 362.88 | 100.00 | |
| 2011 | ||||||