| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $33,442 | $15,442 |
| 2016 | $34,536 | $14,783 |
| 2017 | $35,589 | $26,379 |
| 2018 | $35,589 | $19,936 |
| 2019 | $37,450 | $25,317 |
| 2020 | $37,824 | $25,691 |
| 2021* | $38,978 | $26,071 |
| 2022* | $40,166 | $26,457 |
| 2023* | $41,392 | $26,849 |
| 2024* | $42,654 | $27,246 |
| 2025* | $43,955 | $27,649 |
