| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $40,912 | $19,923 |
| 2016 | $42,556 | $23,700 |
| 2017 | $43,900 | $24,426 |
| 2018 | $43,900 | $20,805 |
| 2019 | $46,688 | $23,158 |
| 2020 | $47,722 | $24,192 |
| 2021* | $49,230 | $25,271 |
| 2022* | $50,786 | $26,398 |
| 2023* | $52,391 | $27,575 |
| 2024* | $54,046 | $28,805 |
| 2025* | $55,754 | $30,090 |
