| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $38,403 | $22,963 |
| 2016 | $39,665 | $22,999 |
| 2017 | $41,111 | $23,267 |
| 2018 | $41,111 | $23,419 |
| 2019 | $43,998 | $25,625 |
| 2020 | $44,844 | $26,471 |
| 2021* | $46,319 | $26,781 |
| 2022* | $47,843 | $27,094 |
| 2023* | $49,417 | $27,411 |
| 2024* | $51,043 | $27,732 |
| 2025* | $52,722 | $28,056 |
