Less than high school graduate High school graduate High school or less Some college College graduate
3/31/2000 1% 0% 1%
3/1/2001 2% 4% 8% 11%
9/10/2001 2% 5% 8% 13%
9/19/2001 1% 4% 11% 12%
10/1/2001 5% 6% 10%
10/7/2001 4% 8% 11%
10/18/2001 3% 6% 9% 12%
11/18/2001 1% 5% 11% 14%
12/23/2001 3% 4% 11% 17%
1/31/2002 4% 4% 11% 16%
5/19/2002 3% 6% 14% 18%
7/26/2002 3% 7% 15% 17%
10/6/2002 3% 10% 20% 24%
10/27/2002 9% 6% 13% 22%
11/24/2002 4% 10% 18% 24%
12/22/2002 2% 7% 15% 23%
3/24/2003 4% 12% 17% 26%
3/25/2003 4% 12% 18% 27%
5/20/2003 5% 11% 20% 25%
6/24/2003 5% 10% 24% 24%
8/3/2003 4% 12% 20% 29%
12/14/2003 9% 12% 24% 31%
3/1/2004 7% 16% 31% 40%
3/17/2004 10% 19% 31% 39%
6/17/2004 8% 16% 29% 38%
7/3/2004 6% 18% 28% 42%
11/22/2004 7% 14% 31% 47%
11/30/2004 13% 31% 47%
2/9/2005 12% 19% 34% 47%
3/21/2005 9% 20% 36% 47%
6/7/2005 13% 23% 39% 52%
12/8/2005 13% 27% 44% 56%
12/31/2005 14% 25% 44% 55%
2/6/2006 19% 29% 50% 58%
3/28/2006 19% 30% 49% 63%
4/6/2006 17% 32% 48% 63%
8/31/2006 12% 31% 52% 66%
12/4/2006 17% 34% 55% 69%
12/30/2006 16% 32% 53% 68%
9/5/2007 26% 39% 63% 72%
12/2/2007 22% 43% 63% 75%
1/13/2008 21% 40% 61% 72%
5/11/2008 29% 39% 64% 78%
8/10/2008 24% 48% 68% 78%
8/31/2008 22% 44% 67% 82%
12/4/2008 20% 45% 67% 81%
12/20/2008 17% 43% 65% 84%
4/19/2009 27% 51% 69% 82%
6/21/2009 46% 75% 86%
9/14/2009 25% 54% 71% 84%
12/27/2009 24% 45% 73% 82%
1/19/2010 28% 49% 71% 82%
5/30/2010 31% 51% 75% 86%
9/13/2010 22% 49% 72% 82%
11/24/2010 22% 50% 71% 82%
12/21/2010 27% 51% 76% 80%
5/22/2011 22% 48% 71% 83%
8/26/2011 22% 52% 73% 85%
1/8/2012 23% 56% 80% 87%
2/19/2012 25% 52% 76% 90%
4/3/2012 34% 55% 74% 87%
11/10/2012 29% 55% 78% 87%
12/9/2012 27% 56% 73% 85%
5/19/2013 37% 57% 78% 89%
9/30/2013 28% 58% 80% 90%
4/12/2015 22% 53% 75% 86%
7/12/2015 30% 54% 74% 87%
11/15/2015 22% 56% 75% 88%
4/4/2016 24% 59% 80% 90%
11/6/2016 34% 62% 80% 91%
1/10/2018 24% 56% 68% 85%
2/7/2019 46% 59% 77% 93%
2/8/2021 59% 80% 94%