| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $46,644 | $24,218 |
| 2016 | $47,852 | $25,246 |
| 2017 | $50,870 | $26,614 |
| 2018 | $50,870 | $24,479 |
| 2019 | $53,676 | $25,397 |
| 2020 | $55,196 | $26,917 |
| 2021* | $56,758 | $28,058 |
| 2022* | $58,364 | $29,248 |
| 2023* | $60,016 | $30,488 |
| 2024* | $61,714 | $31,781 |
| 2025* | $63,461 | $33,128 |