| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $35,748 | $29,172 |
| 2016 | $38,557 | $29,060 |
| 2017 | $39,544 | $30,760 |
| 2018 | $39,544 | $32,003 |
| 2019 | $40,363 | $32,280 |
| 2020 | $41,670 | $33,587 |
| 2021* | $42,737 | $34,944 |
| 2022* | $43,831 | $36,356 |
| 2023* | $44,953 | $37,824 |
| 2024* | $46,104 | $39,353 |
| 2025* | $47,284 | $40,942 |
