PESOS PER U.S DOLLAR RATES                           
  1979 to 2002                                                   1979 to 2002
  in pesos per U.S. dollar                      
  Monthly Averages 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002   Monthly Averages
  January 7.376 7.417 7.632 8.254 9.287 14.002 18.979 19.042 20.463 20.846 21.342 22.464 28.000 26.545 25.280 27.725 24.622 26.212 26.317 42.661 38.404 40.427 50.969 51.410   January
  February 7.377 7.418 7.668 8.283 9.464 14.002 18.256 20.461 20.525 20.903 21.357 22.624 28.000 26.158 25.312 27.646 25.028 26.159 26.341 40.414 38.780 40.572 48.290 51.282   February
  March 7.378 7.426 7.730 8.341 9.606 14.002 18.478 20.781 20.563 21.028 21.339 22.759 28.000 25.810 25.366 27.587 25.859 26.196 26.332 39.004 38.911 40.938 48.467 51.066   March
  April 7.380 7.443 7.790 8.379 9.869 14.002 18.484 20.505 20.505 21.030 21.414 22.761 27.926 25.667 26.078 27.530 26.008 26.190 26.364 38.442 38.242 41.188 50.185 50.987   April
  May 7.378 7.510 7.850 8.416 10.032 14.002 18.480 20.500 20.473 20.954 21.580 22.902 27.819 26.150 27.006 27.053 25.849 26.176 26.372 39.297 37.838 41.806 50.539 49.838   May
  June 7.374 7.521 7.936 8.451 10.385 17.402 18.472 20.552 20.456 20.949 21.680 23.103 27.796 26.121 27.206 26.976 25.674 26.194 26.376 40.399 37.899 42.649 51.488 50.406   June
  July 7.371 7.543 7.949 8.488 11.002 18.002 18.581 20.454 20.450 21.025 21.887 23.563 27.621 25.262 27.569 26.461 25.514 26.200 27.668 41.781 38.280 44.356 53.224 50.596   July
  August 7.372 7.556 7.952 8.529 11.002 18.002 20.432 20.432 20.439 21.059 21.880 24.447 27.200 24.669 27.949 26.313 25.711 26.199 29.331 43.038 39.261 44.898 51.988 51.793   August
  September 7.372 7.562 7.992 8.638 11.002 18.002 18.616 20.509 20.601 21.249 21.969 25.352 26.983 24.726 28.234 25.911 25.969 26.236 32.395 43.776 40.174 45.737 51.250 52.129   September
  October 7.371 7.567 8.064 8.766 13.702 19.148 18.704 20.437 20.706 21.362 21.959 25.750 26.995 24.785 29.160 25.394 25.965 26.269 34.464 42.888 40.315 48.106 51.733 52.907   October
  November 7.372 7.580 8.101 8.875 14.002 19.955 18.737 20.436 20.817 21.377 22.099 28.000 26.737 24.936 28.485 24.265 26.167 26.266 34.518 39.944 40.341 49.754 51.990 53.308   November