| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $66,874 | $43,663 |
| 2016 | $68,670 | $44,824 |
| 2017 | $71,330 | $46,565 |
| 2018 | $71,330 | $42,454 |
| 2019 | $77,120 | $46,096 |
| 2020 | $79,296 | $48,272 |
| 2021* | $81,532 | $50,145 |
| 2022* | $83,831 | $52,091 |
| 2023* | $86,195 | $54,112 |
| 2024* | $88,626 | $56,211 |
| 2025* | $91,125 | $58,392 |