| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $25,217 | $15,845 |
| 2016 | $26,571 | $17,443 |
| 2017 | $28,024 | $18,956 |
| 2018 | $28,024 | $16,752 |
| 2019 | $29,729 | $17,168 |
| 2020 | $30,084 | $17,523 |
| 2021* | $31,700 | $17,958 |
| 2022* | $33,402 | $18,403 |
| 2023* | $35,195 | $18,859 |
| 2024* | $37,085 | $19,327 |
| 2025* | $39,077 | $19,806 |
