| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $25,141 | $18,709 |
| 2016 | $28,987 | $22,415 |
| 2017 | $28,791 | $21,923 |
| 2018 | $28,791 | $19,846 |
| 2019 | N/A | N/A |
| 2020 | $23,759 | $16,666 |
| 2021* | $23,759 | $16,301 |
| 2022* | $23,759 | $15,944 |
| 2023* | $23,759 | $15,595 |
| 2024* | $23,759 | $15,253 |
| 2025* | $23,759 | $14,919 |