| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $51,830 | $34,366 |
| 2016 | $53,030 | $35,146 |
| 2017 | $54,260 | $35,931 |
| 2018 | $54,260 | $35,032 |
| 2019 | $57,310 | $36,165 |
| 2020 | $58,130 | $36,985 |
| 2021* | $59,479 | $37,825 |
| 2022* | $60,859 | $38,683 |
| 2023* | $62,270 | $39,561 |
| 2024* | $63,715 | $40,459 |
| 2025* | $65,193 | $41,378 |
