| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $41,740 | $24,206 |
| 2016 | $42,180 | $25,567 |
| 2017 | $43,000 | $26,215 |
| 2018 | $43,000 | $23,456 |
| 2019 | $44,146 | $24,102 |
| 2020 | $45,364 | $25,320 |
| 2021* | $46,244 | $26,016 |
| 2022* | $47,141 | $26,732 |
| 2023* | $48,056 | $27,467 |
| 2024* | $48,988 | $28,222 |
| 2025* | $49,938 | $28,998 |