| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $30,730 | $19,146 |
| 2016 | $32,000 | $18,965 |
| 2017 | $33,008 | $19,518 |
| 2018 | $33,008 | $19,695 |
| 2019 | $34,814 | $20,325 |
| 2020 | $36,314 | $21,825 |
| 2021* | $37,814 | $22,462 |
| 2022* | $39,375 | $23,118 |
| 2023* | $41,002 | $23,793 |
| 2024* | $42,695 | $24,488 |
| 2025* | $44,458 | $25,203 |
