| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $45,051 | $32,874 |
| 2016 | $46,409 | $34,738 |
| 2017 | $51,642 | $39,154 |
| 2018 | $51,642 | $37,995 |
| 2019 | $54,310 | $44,479 |
| 2020 | $54,740 | $44,909 |
| 2021* | $56,388 | $47,455 |
| 2022* | $58,085 | $50,146 |
| 2023* | $59,833 | $52,989 |
| 2024* | $61,634 | $55,994 |
| 2025* | $63,489 | $59,169 |