| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $52,600 | $33,296 |
| 2016 | $54,310 | $33,557 |
| 2017 | $56,080 | $34,495 |
| 2018 | $56,080 | $31,126 |
| 2019 | $58,620 | $31,548 |
| 2020 | $59,980 | $32,908 |
| 2021* | $61,929 | $33,356 |
| 2022* | $63,942 | $33,809 |
| 2023* | $66,020 | $34,269 |
| 2024* | $68,166 | $34,735 |
| 2025* | $70,381 | $35,207 |