| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $44,811 | $29,401 |
| 2016 | $45,902 | $31,299 |
| 2017 | $47,298 | $30,988 |
| 2018 | $47,298 | $28,877 |
| 2019 | $51,486 | $31,145 |
| 2020 | $53,920 | $33,579 |
| 2021* | $55,559 | $35,748 |
| 2022* | $57,248 | $38,058 |
| 2023* | $58,989 | $40,516 |
| 2024* | $60,782 | $43,133 |
| 2025* | $62,630 | $45,920 |