| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $60,902 | $37,602 |
| 2016 | $62,010 | $38,155 |
| 2017 | $64,436 | $38,782 |
| 2018 | $64,436 | $38,027 |
| 2019 | $67,943 | $38,276 |
| 2020 | $67,629 | $37,962 |
| 2021* | $68,860 | $38,209 |
| 2022* | $70,113 | $38,457 |
| 2023* | $71,389 | $38,707 |
| 2024* | $72,688 | $38,959 |
| 2025* | $74,011 | $39,212 |