2024 26 USC 1 – Tax imposed

2023 26 USC 1 – Tax imposed

2022 26 USC 1 – Tax imposed

2021 26 USC 1 – Tax imposed

2020 26 USC 1 – Tax imposed

2018 26 USC 1 – Tax imposed

2017 26 USC 1 – Tax imposed

2015 26 USC 1 – Tax imposed

2014 26 USC 1 – Tax imposed

2013 26 USC 1 – Tax imposed

2012 26 USC 1 – Tax imposed

2010 26 USC 1 – Tax imposed