| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $39,934 | $21,390 |
| 2016 | $41,472 | $21,440 |
| 2017 | $42,952 | $22,184 |
| 2018 | $42,952 | $20,754 |
| 2019 | $46,164 | $22,751 |
| 2020 | $47,728 | $24,315 |
| 2021* | $49,432 | $25,159 |
| 2022* | $51,197 | $26,032 |
| 2023* | $53,024 | $26,935 |
| 2024* | $54,917 | $27,870 |
| 2025* | $56,878 | $28,837 |
