| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $35,055 | $29,465 |
| 2016 | $36,096 | $30,780 |
| 2017 | $37,323 | $29,846 |
| 2018 | $37,323 | $30,685 |
| 2019 | $40,110 | $31,335 |
| 2020 | $40,988 | $32,213 |
| 2021* | $42,205 | $33,115 |
| 2022* | $43,459 | $34,042 |
| 2023* | $44,750 | $34,995 |
| 2024* | $46,079 | $35,975 |
| 2025* | $47,447 | $36,983 |
