* the historical exchange rate between us dollars and other currencies;

data currency;



currency    cur_date    exchRate

--------------------------------

  USD       01JAN03     1.00000

  EUR       01JAN03     0.94160

  SGD       01JAN03     1.73628

  AUD       01JAN03     1.71592

  CAD       01JAN03     1.54145

  USD       01FEB03     1.00000

  EUR       01FEB03     0.92726

  SGD       01FEB03     1.74514

  AUD       01FEB03     1.67930

  CAD       01FEB03     1.51215

  USD       01MAR03     1.00000

  GBP       01MAR03     0.92637

  SGD       01MAR03     1.75511

  AUD       01MAR03     1.66290

  CAD       01MAR03     1.47608

  USD       01APR03     1.00000

  EUR       01APR03     0.92075

  SGD       01APR03     1.77712

  AUD       01APR03     1.63977

  CAD       01APR03     1.45820

  USD       01MAY03     1.00000

  EUR       01MAY03     0.86563

  SGD       01MAY03     1.73571

  AUD       01MAY03     1.54638

  CAD       01MAY03     1.38396

  USD       01JUN03     1.00000

  EUR       01JUN03     0.85341

  SGD       01JUN03     1.73090

  AUD       01JUN03     1.50509

  CAD       01JUN03     1.35297

  USD       01JUL03     1.00000

  EUR       01JUL03     0.87561

  SGD       01JUL03     1.76712

  AUD       01JUL03     1.53064

  CAD       01JUL03     1.38795

  USD       01AUG03     1.00000

  EUR       01AUG03     0.89678

  SGD       01AUG03     1.75323

  AUD       01AUG03     1.53413

  CAD       01AUG03     1.39553

  USD       01SEP03     1.00000

  EUR       01SEP03     0.88925

  SGD       01SEP03     1.74698

  AUD       01SEP03     1.51142

  CAD       01SEP03     1.36443

  USD       01OCT03     1.00000

  GBP       01OCT03     0.85461

  SGD       01OCT03     1.73361

  AUD       01OCT03     1.44498

  CAD       01OCT03     1.32373

  USD       01NOV03     1.00000

  EUR       01NOV03     0.85405

  SGD       01NOV03     1.72961

  AUD       01NOV03     1.39728

  CAD       01NOV03     1.31250

  USD       01DEC03     1.00000

  EUR       01DEC03     0.81372

  SGD       01DEC03     1.71168

  AUD       01DEC03     1.35421

  CAD       01DEC03     1.31361

  USD       01JAN04     1.00000

  EUR       01JAN04     0.79411

  SGD       01JAN04     1.69837

  AUD       01JAN04     1.30219

  CAD       01JAN04     1.29660

  USD       01FEB04     1.00000

  EUR       01FEB04     0.79293

  SGD       01FEB04     1.68812

  AUD       01FEB04     1.28946

  CAD       01FEB04     1.32906

  USD       01MAR04     1.00000

  GBP       01MAR04     0.81540

  SGD       01MAR04     1.70165

  AUD       01MAR04     1.33446

  CAD       01MAR04     1.32894

  USD       01APR04     1.00000

  EUR       01APR04     0.83267

  SGD       01APR04     1.68325

  AUD       01APR04     1.33851

  CAD       01APR04     1.33898

  USD       01MAY04     1.00000

  EUR       01MAY04     0.83349

  SGD       01MAY04     1.71124

  AUD       01MAY04     1.41819

  CAD       01MAY04     1.37745

  USD       01JUN04     1.00000

  EUR       01JUN04     0.82327

  SGD       01JUN04     1.71305

  AUD       01JUN04     1.43931

  CAD       01JUN04     1.36025

  USD       01JUL04     1.00000

  EUR       01JUL04     0.81557

  SGD       01JUL04     1.71462

  AUD       01JUL04     1.40982

  CAD       01JUL04     1.32778