| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $51,317 | $44,130 |
| 2016 | $52,992 | $45,303 |
| 2017 | $53,533 | $44,739 |
| 2018 | $53,533 | $45,230 |
| 2019 | $55,591 | $47,034 |
| 2020 | $56,368 | $47,811 |
| 2021* | $57,157 | $48,600 |
| 2022* | $57,957 | $49,402 |
| 2023* | $58,769 | $50,217 |
| 2024* | $59,592 | $51,045 |
| 2025* | $60,426 | $51,888 |
