| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $49,080 | $27,046 |
| 2016 | $51,505 | $28,063 |
| 2017 | $53,000 | $27,271 |
| 2018 | $53,000 | $26,367 |
| 2019 | $55,300 | $18,483 |
| 2020 | $56,950 | $20,133 |
| 2021* | $58,647 | $19,565 |
| 2022* | $60,395 | $19,014 |
| 2023* | $62,195 | $18,477 |
| 2024* | $64,048 | $17,956 |
| 2025* | $65,957 | $17,450 |