| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $39,720 | $22,252 |
| 2016 | $42,090 | $25,380 |
| 2017 | $42,963 | $26,535 |
| 2018 | $42,963 | $24,900 |
| 2019 | $49,594 | $24,552 |
| 2020 | $50,000 | $24,958 |
| 2021* | $51,035 | $25,370 |
| 2022* | $52,091 | $25,788 |
| 2023* | $53,170 | $26,214 |
| 2024* | $54,270 | $26,646 |
| 2025* | $55,394 | $27,086 |