| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $36,412 | $25,152 |
| 2016 | $37,290 | $25,400 |
| 2017 | $38,268 | $26,946 |
| 2018 | $38,268 | $25,534 |
| 2019 | $40,146 | $25,509 |
| 2020 | $41,163 | $26,526 |
| 2021* | $42,204 | $26,789 |
| 2022* | $43,272 | $27,054 |
| 2023* | $44,367 | $27,322 |
| 2024* | $45,489 | $27,592 |
| 2025* | $46,640 | $27,865 |