| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $65,900 | $31,003 |
| 2016 | $68,190 | $31,806 |
| 2017 | $70,600 | $32,853 |
| 2018 | $70,600 | $31,995 |
| 2019 | $76,200 | $29,009 |
| 2020 | $79,000 | $31,809 |
| 2021* | $81,789 | $32,633 |
| 2022* | $84,676 | $33,478 |
| 2023* | $87,665 | $34,345 |
| 2024* | $90,759 | $35,235 |
| 2025* | $93,963 | $36,147 |
