| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $48,545 | $21,991 |
| 2016 | $49,743 | $29,021 |
| 2017 | $51,254 | $27,657 |
| 2018 | $51,254 | $25,625 |
| 2019 | $54,211 | $26,878 |
| 2020 | $54,591 | $27,258 |
| 2021* | $55,939 | $27,642 |
| 2022* | $57,321 | $28,032 |
| 2023* | $58,737 | $28,427 |
| 2024* | $60,188 | $28,828 |
| 2025* | $61,674 | $29,235 |