| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $24,135 | $18,428 |
| 2016 | $24,835 | $22,308 |
| 2017 | $26,535 | $25,447 |
| 2018 | $26,535 | $20,838 |
| 2019 | $28,235 | $26,735 |
| 2020 | $28,235 | $26,735 |
| 2021* | $29,054 | $30,497 |
| 2022* | $29,896 | $34,787 |
| 2023* | $30,763 | $39,682 |
| 2024* | $31,656 | $45,265 |
| 2025* | $32,574 | $51,634 |