| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $22,852 | $16,715 |
| 2016 | $24,753 | $18,416 |
| 2017 | $25,351 | $18,879 |
| 2018 | $25,351 | $19,370 |
| 2019 | $24,893 | $18,570 |
| 2020 | $24,738 | $18,415 |
| 2021* | $24,738 | $18,877 |
| 2022* | $24,738 | $19,351 |
| 2023* | $24,738 | $19,837 |
| 2024* | $24,738 | $20,335 |
| 2025* | $24,738 | $20,845 |
