| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $35,457 | $25,011 |
| 2016 | $35,436 | $24,987 |
| 2017 | N/A | N/A |
| 2018 | N/A | N/A |
| 2019 | $34,620 | $26,148 |
| 2020 | $34,989 | $26,517 |
| 2021* | $35,164 | $26,692 |
| 2022* | $35,340 | $26,868 |
| 2023* | $35,516 | $27,046 |
| 2024* | $35,694 | $27,224 |
| 2025* | $35,873 | $27,404 |