| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $63,330 | $22,697 |
| 2016 | $65,824 | $23,632 |
| 2017 | $68,582 | $26,284 |
| 2018 | $68,582 | $23,119 |
| 2019 | $73,600 | $21,990 |
| 2020 | $76,425 | $24,815 |
| 2021* | $79,436 | $25,837 |
| 2022* | $82,566 | $26,902 |
| 2023* | $85,819 | $28,010 |
| 2024* | $89,200 | $29,164 |
| 2025* | $92,715 | $30,366 |