| 2018 | 2018 | 2018 | 2018 | 2018 | 2016 | 2016 | 2016 | 2014 | 2014 | 2014 | 2014 | 2014 | 2014 | 2012 | 2010 | 2010 | 2010 | 2010 | 2010 | 2010 | 2010 | 2008 | 2008 | 2006 | 2006 | 2006 | 2006 | 2006 | 2006 | 2004 | 2004 | 2002 | 2002 | 2002 | 2002 | 2002 | 2002 | 2002 |
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| Trad Collars | GOV | AG | SOS | COMP | TREAS | PRES | US SEN | COMP | US SEN | GOV | AG | SOS | COMP | TREAS | PRES | US SEN | GOV | LGOV | AG | SOS | COMP | TREAS | PRES | US SEN | GOV | LGOV | AG | SOS | COMP | TREAS | PRES | US SEN | US SEN | GOV | LGOV | AG | SOS | COMP | TREAS |
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| Cook County | 18.70% | 18.97% | 18.66% | 18.59% | 18.66% | 21.53% | 21.26% | 19.70% | 20.74% | 20.47% | 19.89% | 19.77% | 20.36% | 20.13% | 21.25% | 21.04% | 20.72% | 20.96% | 20.56% | 20.29% | 20.85% | 20.22% | 19.85% | 19.99% | 18.41% | 18.97% | 18.23% | 18.22% | 18.23% | 18.34% | 19.05% | 20.94% | 20.11% | 19.91% | 20.23% | 20.16% | 19.84% | 19.65% | 20.06% |
| ___Chicago | 4.28% | 4.31% | 4.17% | 4.17% | 4.18% | 6.10% | 5.75% | 5.14% | 4.97% | 5.07% | 4.57% | 4.53% | 4.83% | 4.75% | 5.04% | 4.45% | 4.42% | 4.38% | 4.28% | 4.24% | 4.40% | 4.21% | 4.79% | 4.52% | 3.26% | 3.34% | 3.20% | 3.21% | 3.17% | 3.19% | 3.44% | 3.86% | 3.44% | 3.56% | 3.47% | 3.49% | 3.37% | 3.33% | 3.40% |
| ___Cook Suburbs | 14.42% | 14.66% | 14.48% | 14.41% | 14.48% | 15.43% | 15.51% | 14.56% | 15.77% | 15.41% | 15.33% | 15.23% | 15.54% | 15.38% | 16.21% | 16.59% | 16.30% | 16.58% | 16.28% | 16.05% | 16.44% | 16.01% | 15.06% | 15.47% | 15.15% | 15.62% | 15.03% | 15.01% | 15.06% | 15.15% | 15.61% | 17.08% | 16.67% | 16.36% | 16.77% | 16.68% | 16.46% | 16.32% | 16.66% |
| Collars | 28.47% | 29.04% | 29.07% | 29.37% | 29.17% | 29.51% | 30.37% | 30.45% | 31.47% | 30.22% | 30.54% | 30.44% | 30.26% | 31.05% | 31.19% | 32.60% | 32.26% | 32.01% | 32.08% | 32.79% | 32.54% | 31.93% | 32.65% | 33.79% | 37.82% | 38.76% | 37.92% | 37.44% | 38.36% | 38.26% | 34.85% | 34.88% | 35.88% | 35.14% | 34.85% | 36.00% | 35.51% | 35.41% | 34.90% |
| Downstate | 52.83% | 52.00% | 52.27% | 52.04% | 52.18% | 48.96% | 48.38% | 49.85% | 47.79% | 49.30% | 49.57% | 49.79% | 49.37% | 48.82% | 47.57% | 46.35% | 47.01% | 47.03% | 47.36% | 46.92% | 46.62% | 47.85% | 47.50% | 46.22% | 43.77% | 42.27% | 43.84% | 44.35% | 43.41% | 43.40% | 46.10% | 44.18% | 44.01% | 44.95% | 44.92% | 43.84% | 44.66% | 44.94% | 45.05% |
| Total | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% |
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