| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $38,104 | $21,645 |
| 2016 | $39,698 | $24,426 |
| 2017 | $40,390 | $24,363 |
| 2018 | $40,390 | $24,239 |
| 2019 | $42,098 | $23,015 |
| 2020 | $43,754 | $24,671 |
| 2021* | $45,474 | $24,607 |
| 2022* | $47,261 | $24,543 |
| 2023* | $49,118 | $24,479 |
| 2024* | $51,048 | $24,415 |
| 2025* | $53,055 | $24,352 |