| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $41,638 | $24,684 |
| 2016 | $42,408 | $25,558 |
| 2017 | $43,388 | $26,075 |
| 2018 | $43,388 | $24,396 |
| 2019 | $45,566 | $26,592 |
| 2020 | $46,886 | $27,912 |
| 2021* | $47,969 | $28,900 |
| 2022* | $49,077 | $29,923 |
| 2023* | $50,211 | $30,982 |
| 2024* | $51,371 | $32,079 |
| 2025* | $52,557 | $33,215 |