| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $38,927 | $23,277 |
| 2016 | $41,350 | $24,555 |
| 2017 | $41,970 | $25,195 |
| 2018 | $41,970 | $23,359 |
| 2019 | $45,300 | $24,262 |
| 2020 | $46,900 | $25,862 |
| 2021* | $48,556 | $26,863 |
| 2022* | $50,270 | $27,902 |
| 2023* | $52,044 | $28,982 |
| 2024* | $53,881 | $30,104 |
| 2025* | $55,783 | $31,269 |