dow jones vs gspc return in the 1990s

In the 1990s, the Dow Jones Industrial Average (DJI) returned 317.6% and the S&P 500 (GSPC) returned 315.7%.

DATE the S&P 500 the Dow Jones Industrial Average
December 1999
$1,469.25
$11,497.12
November 1999
$1,388.91
$10,877.81
October 1999
$10,729.87
October 1999
$1,362.93
September 1999
$1,282.71
$10,336.96
August 1999
$1,320.41
$10,829.28
July 1999
$10,655.15
July 1999
$1,328.72
June 1999
$1,372.71
$10,970.81
May 1999
$10,559.75
May 1999
$1,301.84
April 1999
$1,335.18
$10,789.04
March 1999
$1,286.37
$9,786.16
February 1999
$9,306.57
February 1999
$1,238.33
January 1999
$9,358.82
January 1999
$1,279.64
December 1998
$1,229.23
$9,181.43
November 1998
$1,163.63
$9,116.55
October 1998
$8,592.11
October 1998
$1,098.67
September 1998
$1,017.01
$7,842.62
August 1998
$957.28
$7,539.06
July 1998
$1,120.67
$8,883.29
June 1998
$1,133.84
$8,952.01