| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $53,220 | $34,594 |
| 2016 | $55,220 | $36,953 |
| 2017 | $57,445 | $38,450 |
| 2018 | $57,445 | $37,332 |
| 2019 | $62,110 | $38,581 |
| 2020 | $63,931 | $40,402 |
| 2021* | $66,335 | $42,038 |
| 2022* | $68,829 | $43,741 |
| 2023* | $71,417 | $45,512 |
| 2024* | $74,102 | $47,356 |
| 2025* | $76,888 | $49,273 |