| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $50,718 | $25,831 |
| 2016 | $53,030 | $26,989 |
| 2017 | $55,322 | $27,714 |
| 2018 | $55,322 | $25,854 |
| 2019 | $58,524 | $26,628 |
| 2020 | $58,516 | $26,620 |
| 2021* | $61,044 | $27,336 |
| 2022* | $63,681 | $28,071 |
| 2023* | $66,432 | $28,827 |
| 2024* | $69,302 | $29,602 |
| 2025* | $72,296 | $30,398 |