| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $53,539 | $29,011 |
| 2016 | $55,534 | $29,547 |
| 2017 | $57,749 | $30,110 |
| 2018 | $57,749 | $29,591 |
| 2019 | $62,678 | $30,854 |
| 2020 | $65,183 | $33,359 |
| 2021* | $67,784 | $33,996 |
| 2022* | $70,488 | $34,645 |
| 2023* | $73,301 | $35,307 |
| 2024* | $76,226 | $35,982 |
| 2025* | $79,267 | $36,669 |