| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $34,663 | $30,001 |
| 2016 | $35,029 | $31,041 |
| 2017 | $35,794 | $32,953 |
| 2018 | $35,794 | $32,797 |
| 2019 | $35,794 | $31,802 |
| 2020 | $36,886 | $32,894 |
| 2021* | $37,277 | $34,022 |
| 2022* | $37,672 | $35,189 |
| 2023* | $38,071 | $36,396 |
| 2024* | $38,475 | $37,645 |
| 2025* | $38,883 | $38,936 |
