Ill. Admin. Code tit. 71, § 40.APPENDIX A
| Unit Cost Guidelines (2010 – 2017) | |||
| Bid Month | Elementary | Middle / Jr. High | High School |
| and Year | |||
| January 2010 | $140.59 | $153.99 | $154.96 |
| February 2010 | $140.95 | $154.38 | $155.35 |
| March 2010 | $141.30 | $154.76 | $155.73 |
| April 2010 | $141.65 | $155.15 | $156.12 |
| May 2010 | $142.01 | $155.54 | $156.51 |
| June 2010 | $142.36 | $155.93 | $156.90 |
| July 2010 | $142.72 | $156.32 | $157.30 |
| August 2010 | $143.07 | $156.71 | $157.69 |
| September 2010 | $143.43 | $157.10 | $158.08 |
| October 2010 | $143.79 | $157.49 | $158.48 |
| November 2010 | $144.15 | $157.89 | $158.88 |
| December 2010 | $144.51 | $158.28 | $159.27 |
| January 2011 | $144.87 | $158.68 | $159.67 |
| February 2011 | $145.23 | $159.07 | $160.07 |
| March 2011 | $145.60 | $159.47 | $160.47 |
| April 2011 | $145.96 | $159.87 | $160.87 |
| May 2011 | $146.32 | $160.27 | $161.27 |
| June 2011 | $146.69 | $160.67 | $161.68 |
| July 2011 | $147.06 | $161.07 | $162.08 |
| August 2011 | $147.43 | $161.48 | $162.49 |
| September 2011 | $147.79 | $161.88 | $162.89 |
| October 2011 | $148.16 | $162.28 | $163.30 |
| November 2011 | $148.53 | $162.69 | $163.71 |
| December 2011 | $148.90 | $163.10 | $164.12 |
| January 2012 | $149.28 | $163.50 | $164.53 |
| February 2012 | $149.65 | $163.91 | $164.94 |
| March 2012 | $150.02 | $164.32 | $165.35 |
| April 2012 | $150.40 | $164.73 | $165.76 |
| May 2012 | $150.78 | $165.15 | $166.18 |
| June 2012 | $151.15 | $165.56 | $166.59 |
| July 2012 | $151.53 | $165.97 | $167.01 |
| August 2012 | $151.91 | $166.39 | $167.43 |
| September 2012 | $152.29 | $166.80 | $167.85 |
| October 2012 | $152.67 | $167.22 | $168.27 |
| November 2012 | $153.05 | $167.64 | $168.69 |
| December 2012 | $153.43 | $168.06 | $169.11 |
| January 2013 | $153.82 | $168.48 | $169.53 |
| February 2013 | $154.20 | $168.90 | $169.96 |
| March 2013 | $154.59 | $169.32 | $170.38 |
| April 2013 | $154.97 | $169.74 | $170.81 |
| May 2013 | $155.36 | $170.17 | $171.23 |
| June 2013 | $155.75 | $170.59 | $171.66 |
| July 2013 | $156.14 | $171.02 | $172.09 |
| August 2013 | $156.53 | $171.45 | $172.52 |
| September 2013 | $156.92 | $171.88 | $172.95 |
| October 2013 | $157.31 | $172.31 | $173.38 |
| November 2013 | $157.71 | $172.74 | $173.82 |
| December 2013 | $158.10 | $173.17 | $174.25 |
| January 2014 | $158.50 | $173.60 | $174.69 |
| February 2014 | $158.89 | $174.04 | $175.12 |
| March 2014 | $159.29 | $174.47 | $175.56 |
| April 2014 | $159.69 | $174.91 | $176.00 |
| May 2014 | $160.09 | $175.34 | $176.44 |
| June 2014 | $160.49 | $175.78 | $176.88 |
| July 2014 | $160.89 | $176.22 | $177.32 |
| August 2014 | $161.29 | $176.66 | $177.77 |
| September 2014 | $161.69 | $177.10 | $178.21 |
| October 2014 | $162.10 | $177.55 | $178.66 |
| November 2014 | $162.50 | $177.99 | $179.10 |
| December 2014 | $162.91 | $178.44 | $179.55 |
| January 2015 | $163.32 | $178.88 | $180.00 |
| February 2015 | $163.73 | $179.33 | $180.45 |
| March 2015 | $164.13 | $179.78 | $180.90 |
| April 2015 | $164.54 | $180.23 | $181.35 |
| May 2015 | $164.96 | $180.68 | $181.81 |
| June 2015 | $165.37 | $181.13 | $182.26 |
| July 2015 | $165.78 | $181.58 | $182.72 |
| August 2015 | $166.20 | $182.04 | $183.18 |
| September 2015 | $166.61 | $182.49 | $183.63 |
| October 2015 | $167.03 | $182.95 | $184.09 |
| November 2015 | $167.45 | $183.40 | $184.55 |
| December 2015 | $167.86 | $183.86 | $185.01 |
| January 2016 | $168.28 | $184.32 | $185.48 |
| February 2016 | $168.71 | $184.78 | $185.94 |
| March 2016 | $169.13 | $185.25 | $186.41 |
| April 2016 | $169.55 | $185.71 | $186.87 |
| May 2016 | $169.97 | $186.17 | $187.34 |
| June 2016 | $170.40 | $186.64 | $187.81 |
| July 2016 | $170.82 | $187.10 | $188.28 |
| August 2016 | $171.25 | $187.57 | $188.75 |
| September 2016 | $171.68 | $188.04 | $189.22 |
| October 2016 | $172.11 | $188.51 | $189.69 |
| November 2016 | $172.54 | $188.98 | $190.17 |
| December 2016 | $172.97 | $189.46 | $190.64 |
| January 2017 | $173.40 | $189.93 | $191.12 |
| February 2017 | $173.84 | $190.40 | $191.60 |
| March 2017 | $174.27 | $190.88 | $192.07 |
| April 2017 | $174.71 | $191.36 | $192.55 |
| May 2017 | $175.14 | $191.84 | $193.04 |
| June 2017 | $175.58 | $192.32 | $193.52 |
| July 2017 | $176.02 | $192.80 | $194.00 |
| August 2017 | $176.46 | $193.28 | $194.49 |
| September 2017 | $176.90 | $193.76 | $194.97 |
| October 2017 | $177.34 | $194.25 | $195.46 |
| November 2017 | $177.79 | $194.73 | $195.95 |
| December 2017 | $178.23 | $195.22 | $196.44 |
(Source: Added at 34 Ill. Reg. 19472, effective November 30, 2010)