| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $50,718 | $26,887 |
| 2016 | $51,416 | $26,150 |
| 2017 | $52,056 | $27,456 |
| 2018 | $52,056 | $25,921 |
| 2019 | $54,044 | $24,540 |
| 2020 | $55,506 | $26,002 |
| 2021* | $56,272 | $25,290 |
| 2022* | $57,049 | $24,597 |
| 2023* | $57,836 | $23,923 |
| 2024* | $58,634 | $23,267 |
| 2025* | $59,443 | $22,630 |
