| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $55,162 | $30,066 |
| 2016 | $57,394 | $31,829 |
| 2017 | $58,906 | $32,031 |
| 2018 | $58,906 | $30,305 |
| 2019 | $59,290 | $25,425 |
| 2020 | $60,783 | $26,918 |
| 2021* | $62,315 | $27,088 |
| 2022* | $63,885 | $27,258 |
| 2023* | $65,495 | $27,430 |
| 2024* | $67,145 | $27,603 |
| 2025* | $68,838 | $27,777 |
