Offerings of 6.5660 / 6.858 in past years

• 2009 fall
• 2010 fall
• 2011 fall
• 2012 fall
• 2013 fall
• 2014 fall
• 2015 fall
• 2017 spring
• 2018 spring
• 2019 spring
• 2020 spring
• 2022 spring
• 2023 spring