| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $40,468 | $21,203 |
| 2016 | $41,900 | $21,424 |
| 2017 | $44,490 | $22,885 |
| 2018 | $44,490 | $22,461 |
| 2019 | $47,300 | $24,948 |
| 2020 | $49,100 | $26,748 |
| 2021* | $50,971 | $28,572 |
| 2022* | $52,913 | $30,521 |
| 2023* | $54,929 | $32,602 |
| 2024* | $57,021 | $34,826 |
| 2025* | $59,194 | $37,201 |
