| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $46,600 | $23,697 |
| 2016 | $48,310 | $23,566 |
| 2017 | $50,086 | $22,088 |
| 2018 | $50,086 | $20,979 |
| 2019 | $53,518 | $19,505 |
| 2020 | $55,002 | $20,989 |
| 2021* | $57,021 | $19,935 |
| 2022* | $59,113 | $18,935 |
| 2023* | $61,283 | $17,984 |
| 2024* | $63,532 | $17,081 |
| 2025* | $65,863 | $16,224 |
