| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $43,190 | $26,225 |
| 2016 | $44,700 | $28,373 |
| 2017 | $45,920 | $27,691 |
| 2018 | $45,920 | $24,733 |
| 2019 | $49,420 | $26,743 |
| 2020 | $50,800 | $28,123 |
| 2021* | $52,217 | $29,574 |
| 2022* | $53,674 | $31,100 |
| 2023* | $55,172 | $32,705 |
| 2024* | $56,711 | $34,393 |
| 2025* | $58,293 | $36,167 |