顏色對照表如下(數字為該黨得票率)：
https://i.imgur.com/xeKnn31.png
這裡值得注意的地方如下
https://i.imgur.com/pJsXnxa.png
圖案如下：
1990:
Larry Pressler Republican 135682 52.39%
Ted Muenster Democratic 116727 45.07%
Dean L. Sinclair Independent 6567 2.54%
https://i.imgur.com/WQRkauU.png
https://i.imgur.com/U1wZWjY.png
1996:
Tim Johnson Democratic 166533 51.32%
Larry Pressler Republican 157954 48.68%
https://i.imgur.com/jL478KE.png
https://i.imgur.com/kHtM3fz.png
2002:
Tim Johnson Democratic 167481 49.62%
John Thune Republican 166957 49.47%
https://i.imgur.com/2P3Gol2.png
https://i.imgur.com/m6B781a.png
2008:
Tim Johnson Democratic 237889 62.49%
Joel Dykstra Republican 142784 37.51%
https://i.imgur.com/z7KjBBP.png
https://i.imgur.com/R0f5AWy.png
2014:
Mike Rounds Republican 140741 50.37%
Rick Weiland Democratic 82456 29.51%
Larry Pressler Independent 47741 17.09%
Gordon Howie Independent 8474 3.03%
https://i.imgur.com/bNQOoGu.png
https://i.imgur.com/I9DkdV3.png
選舉資料來源：
Leip, David. Dave Leip's Atlas of U.S. Presidential Elections.
http://uselectionatlas.org (date).