1998
| Date | Ranking |
|---|---|
| Preseason | None |
| Feb. 25 | 17 |
| Mar. 4 | 17 |
| Mar. 11 | 15 |
| Mar. 18 | 14 |
| Mar. 25 | 14 |
| Apr. 1 | 13 |
| Apr. 8 | 12 |
| Apr. 15 | 12 |
| Apr. 22 | 9 |
| Apr. 29 | 9 |
| May 6 | 9 |
| Final | 12 |
1999
| Date | Ranking |
|---|---|
| Preseason | 14 |
| Mar. 3 | 9 |
| Mar. 10 | 7 |
| Mar. 17 | 8 |
| Mar. 24 | 7 |
| Mar. 31 | 9 |
| Apr. 7 | 8 |
| Apr. 14 | 10 |
| Apr. 21 | 12 |
| Apr. 28 | 15 |
| May 5 | 14 |
| May 12 | 15 |
| Final | None |
2000
| Date | Ranking |
|---|---|
| Preseason | 21 |
| Feb. 23 | 11 |
| Mar. 1 | 9 |
| Mar. 8 | 9 |
| Mar. 15 | 10 |
| Mar. 22 | 8 |
| Mar. 29 | 8 |
| Apr. 5 | 9 |
| Apr. 12 | 9 |
| Apr. 19 | 12 |
| Apr. 26 | 11 |
| May 3 | 10 |
| May 10 | 9 |
| Final | 18 |
2001
| Date | Ranking |
|---|---|
| Preseason | 15 |
| Feb. 21 | 9 |
| Feb. 28 | 6 |
| Mar. 7 | 5 |
| Mar. 14 | 5 |
| Mar. 21 | 5 |
| Mar. 28 | 5 |
| Apr. 4 | 4 |
| Apr. 11 | 3 |
| Apr. 18 | 3 |
| Apr. 25 | 3 |
| May 2 | 3 |
| May 9 | 4 |
| Final | 3 |
2002
| Date | Ranking |
|---|---|
| Preseason | 3 |
| Feb. 20 | 2 |
| Feb 27 | 3 |
| Mar. 6 | 3 |
| Mar. 13 | 3 |
| Mar. 20 | 2 |
| Mar. 27 | 3 |
| Apr. 3 | 3 |
| Apr. 10 | 3 |
| Apr. 17 | 3 |
| Apr. 24 | 7 |
| May 1 | 8 |
| May 8 | 8 |
| Final | 15 |
2003
| Date | Ranking |
|---|---|
| Preseason | 14 |
| Feb. 26 | 11 |
| Mar. 5 | 12 |
| Mar. 12 | 11 |
| Mar. 19 | 12 |
| Mar. 26 | 12 |
| Apr. 2 | 13 |
| Apr. 9 | 16 |
| Apr. 16 | 15 |
| Apr. 23 | 16 |
| Apr. 30 | 15 |
| May 7 | 17 |
| Final | 23 |
2004
| Date | Ranking |
|---|---|
| Preseason | 15 |
| Feb. 18 | 8 |
| Feb. 25 | 8 |
| Mar. 3 | 10 |
| Mar. 10 | 11 |
| Mar. 17 | 11 |
| Mar. 24 | 13 |
| Mar. 31 | 11 |
| Apr. 7 | 11 |
| Apr. 14 | 10 |
| Apr. 21 | 10 |
| Apr. 28 | 9 |
| May 5 | 7 |
| May 12 | 8 |
| Final | 4 |
2005
| Date | Ranking |
|---|---|
| Preseason | 6 |
| Feb. 16 | 4 |
| Feb. 23 | 4 |
| Mar. 2 | 3 |
| Mar. 9 | 3 |
| Mar. 16 | 3 |
| Mar. 23 | 5 |
| Mar. 30 | 6 |
| Apr. 6 | 8 |
| Apr. 13 | 8 |
| Apr. 20 | 7 |
| Apr. 27 | 4 |
| May 4 | 4 |
| May 11 | 4 |
| Final | 10 |
2006
| Date | Ranking |
|---|---|
| Preseason | 7 |
| Feb. 15 | 7 |
| Feb. 22 | 6 |
| Mar. 1 | 6 |
| Mar. 8 | 5 |
| Mar. 15 | 5 |
| Mar. 22 | 5 |
| Mar. 29 | 6 |
| Apr. 5 | 9 |
| Apr. 12 | 7 |
| Apr. 26 | 6 |
| May 3 | 9 |
| May 10 | 10 |
| Final | 12 |
2007
| Date | Ranking |
|---|---|
| Preseason | 8 |
| Feb. 15 | 13 |
| Feb. 22 | 11 |
| Mar. 1 | 9 |
| Mar. 8 | 13 |
| Mar. 15 | 13 |
| Mar. 22 | 13 |
| Mar. 29 | 14 |
| Apr. 5 | 14 |
| Apr. 12 | 17 |
| Apr. 19 | 18 |
| Apr. 26 | 17 |
| May 3 | 16 |
| May 10 | 16 |
| Final | 20 |
2008
| Date | Ranking |
|---|---|
| Preseason | 19 |
| Feb. 12 | 13 |
| Feb. 19 | 13 |
| Feb. 26 | 10 |
| Mar. 4 | 9 |
| Mar. 11 | 7 |
| Mar. 18 | 5 |
| Mar. 25 | 5 |
| Apr. 1 | 7 |
| Apr. 8 | 8 |
| Apr. 15 | 7 |
| Apr. 22 | 7 |
| Apr. 29 | 8 |
| May 6 | 8 |
| May 13 | 8 |
| Final | 11 |
2009
| Date | Ranking |
|---|---|
| Preseason | 11 |
| Feb. 10 | 8 |
| Feb. 17 | 5 |
| Feb. 24 | 5 |
| Mar. 3 | 5 |
| Mar. 10 | 4 |
| Mar. 17 | 4 |
| Mar. 24 | 3 |
| Mar. 31 | 2 |
| Apr. 7 | 2 |
| Apr. 14 | 2 |
| Apr. 21 | 5 |
| Apr. 28 | 3 |
| May 5 | 2 |
| May 12 | 5 |
| Final | 10 |
2010
| Date | Ranking |
|---|---|
| Preseason | 10 |
| Feb. 16 | 11 |
| Feb. 23 | 10 |
| Mar. 2 | 10 |
| Mar. 9 | 9 |
| Mar. 16 | 10 |
| Mar. 23 | 9 |
| Mar. 31 | 9 |
| Apr. 6 | 8 |
| Apr. 13 | 8 |
| Apr. 20 | 10 |
| Apr. 27 | 14 |
| May 4 | 15 |
| May 11 | 15 |
| Final | 21 |
2011
| Date | Ranking |
|---|---|
| Preseason | 18 |
| Feb. 15 | 18 |
| Feb. 22 | 16 |
| Mar. 1 | 14 |
| Mar. 8 | 12 |
| Mar. 15 | 10 |
| Mar. 22 | 12 |
| Mar. 29 | 12 |
| Apr. 5 | 14 |
| Apr. 12 | 12 |
| Apr. 19 | 11 |
| Apr. 26 | 13 |
| May 3 | 10 |
| May 10 | 12 |
| May 17 | 12 |
| Final | 10 |
2012
| Date | Ranking |
|---|---|
| Preseason | 9 |
| Feb. 14 | 8 |
| Feb. 21 | 14 |
| Feb. 28 | 11 |
| Mar. 6 | 10 |
| Mar. 13 | 9 |
| Mar. 20 | 9 |
| Mar. 27 | 13 |
| Apr. 3 | 14 |
| Apr. 10 | 15 |
| Apr. 17 | 16 |
| Apr. 24 | 19 |
| May 1 | 19 |
| May 8 | 15 |
| May 15 | 16 |
| Final | 21 |
2013
| Date | Ranking |
|---|---|
| Preseason | 21 |
| Feb. 12 | 22 |
| Feb. 19 | 20 |
| Feb. 26 | 16 |
| Mar. 5 | 18 |
| Mar. 12 | 16 |
| Mar. 19 | 15 |
| Mar. 26 | 15 |
| Apr. 2 | 14 |
| Apr. 9 | 16 |
| Apr. 16 | 16 |
| Apr. 23 | 17 |
| Apr. 30 | 17 |
| May 7 | 13 |
| May 14 | 14 |
| Final | 22 |
2014
| Date | Ranking |
|---|---|
| Preseason | 22 |
| Feb. 11 | 17 |
| Feb. 18 | 13 |
| Feb. 25 | 15 |
| Mar. 4 | 22 |
| Mar. 11 | 21 |
| Mar. 18 | 24 |
| Apr. 1 | 24 |
| Apr. 8 | RV |
| Apr. 15 | -- |
| Apr. 22 | -- |
| Apr. 29 | -- |
| May 6 | -- |
| May 13 | -- |
| June 10 | -- |
2015
| Date | Ranking |
|---|---|
| Preseason | RV |
| Feb. 10 | RV |
| Feb. 17 | RV |
| Feb. 24 | RV |
| Mar. 3 | RV |
| Mar. 10 | -- |
| Mar. 17 | -- |
| Mar. 24 | -- |
| Mar. 31 | -- |
| Apr. 7 | -- |
| Apr. 14 | -- |
| Apr. 21 | -- |
| Apr. 28 | -- |
| May 5 | -- |
| June 2 | -- |
2016
| Date | Ranking |
|---|---|
| Preseason | -- |
| Feb. 15 | -- |
| Feb. 22 | -- |
| Feb. 29 | -- |
| Mar. 7 | -- |
| Mar. 14 | -- |
| Mar. 21 | -- |
| Mar. 28 | -- |
| Apr. 5 | -- |
| Apr. 12 | -- |
| Apr. 19 | -- |
| Apr. 26 | -- |
| May 3 | -- |
| May 10 | -- |
| May 17 | -- |
2017
| Date | Ranking |
|---|---|
| Preseason | -- |
| Feb. 14 | -- |
| Feb. 21 | -- |
| Feb. 28 | -- |
| Mar. 7 | -- |
| Mar. 14 | -- |
| Mar. 21 | -- |
| Mar. 28 | -- |
| Apr. 4 | -- |
| Apr. 11 | -- |
| Apr. 18 | -- |
| Apr. 25 | -- |
| May 2 | -- |
| May 9 | -- |
| May 16 | -- |
2018
| Date | Ranking |
|---|---|
| Preseason | -- |
| Feb. 13 | -- |
| Feb. 20 | -- |
| Feb. 27 | -- |
| Mar. 6 | -- |
| Mar. 13 | -- |
| Mar. 20 | -- |
| Mar. 27 | -- |
| Apr. 3 | -- |
| Apr. 10 | -- |
| Apr. 17 | -- |
| Apr. 24 | -- |
| May 1 | -- |
| May 8 | -- |
| May 15 | -- |
2019
| Date | Ranking |
|---|---|
| Preseason | -- |
| Feb. 12 | -- |
| Feb. 19 | -- |
| Feb. 26 | RV |
| Mar. 5 | RV |
| Mar. 12 | RV |
| Mar. 19 | RV |
| Mar. 26 | RV |
| Apr. 2 | RV |
| Apr. 9 | RV |
| Apr. 16 | RV |
| Apr. 23 | RV |
| Apr. 30 | RV |
| May 7 | RV |
| May 14 | RV |
| Final | -- |
2020
| Date | Ranking |
|---|---|
| Preseason | RV |
| Feb. 11 | RV |
| Feb. 18 | RV |
| Feb. 25 | RV |
| Mar. 3 | RV |
| Mar. 10 | RV |
| Final* | RV |
* - 2020 season canceled in March due to COVID-19 global pandemic
2021
| Date | Ranking |
|---|---|
| Preseason | RV |
| Feb. 16 | RV |
| Feb. 23 | RV |
| March 2 | RV |
| March 9 | RV |
| March 16 | RV |
| March 23 | RV |
| March 30 | RV |
| April 6 | -- |
| April 13 | -- |
| April 20 | -- |
| April 28 | -- |
| May 4 | -- |
| May 11 | -- |
| May 18 | RV |
| Final | RV |
2022
| Date | Ranking |
|---|---|
| Preseason | RV |
| Feb. 8 | RV |
| Feb. 15 | RV |
| Feb. 22 | RV |
| March 1 | RV |
| March 8 | RV |
| March 15 | 25 |
| March 22 | RV |
| March 29 | RV |
| April 5 | 24 |
| April 12 | RV |
| April 19 | 24 |
| April 26 | RV |
| May 3 | RV |
| May 10 | RV |
| May 17 | RV |
| Final |
2023
| Date | Ranking |
|---|---|
| Preseason | 17 |
| Feb. 14 | 19 |
| Feb. 21 | 16 |
| Feb. 28 | 14 |
| March 7 | 12 |
| March 14 | 7 |
| March 21 | 7 |
| March 28 | 6 |
| April 4 | 7 |
| April 11 | 5 |
| April 18 | 8 |
| April 25 | 9 |
| May 2 | 6 |
| May 9 | 7 |
| May 16 | 7 |
| Final | 4 |
2024
| Date | Ranking |
|---|---|
| Preseason | 3 |
| Week 1 | 9 |
| Week 2 | 13 |
| Week 3 | 11 |
| Week 4 | 9 |
| Week 5 | 9 |
| Week 6 | 9 |
| Week 7 | 7 |
| Week 8 | 8 |
| Week 9 | 8 |
| Week 10 | 5 |
| Week 11 | 7 |
| Week 12 | 6 |
| Week 13 | 7 |
| Week 14 | 8 |
| Final | 4 |