dow jones vs gspc return in the 1980s

In the 1980s, the S&P 500 (GSPC) returned 234.2% and the Dow Jones Industrial Average (DJI) returned 228.3%.

DATE the Dow Jones Industrial Average the S&P 500
December 1989
$2,753.20
$353.40
November 1989
$2,706.27
$345.99
October 1989
$2,645.08
$340.36
September 1989
$2,692.82
$349.15
August 1989
$2,737.27
$351.45
July 1989
$2,660.66
$346.08
June 1989
$2,440.06
$317.98
May 1989
$2,480.15
$320.52
April 1989
$2,418.80
$309.64
March 1989
$2,293.62
$294.87
February 1989
$2,258.39
$288.86
January 1989
$2,342.32
$297.47
December 1988
$2,168.57
$277.72
November 1988
$2,114.51
$273.70
October 1988
$2,148.65
$278.97
September 1988
$2,112.91
$271.91
August 1988
$2,031.65
$261.52
July 1988
$2,128.73
$272.02
June 1988
$2,141.71
$273.50
May 1988
$2,031.12
$262.16
April 1988
$2,032.33
$261.33
March 1988
$1,988.06
$258.89
February 1988
$2,071.62
$267.82
January 1988
$1,958.22
$257.07
December 1987
$1,938.83
$247.08