| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $40,510 | $26,070 |
| 2016 | $41,554 | $24,811 |
| 2017 | $42,570 | $25,934 |
| 2018 | $42,570 | $24,413 |
| 2019 | $45,004 | $24,953 |
| 2020 | $46,220 | $26,169 |
| 2021* | $47,412 | $26,747 |
| 2022* | $48,636 | $27,338 |
| 2023* | $49,891 | $27,943 |
| 2024* | $51,178 | $28,560 |
| 2025* | $52,498 | $29,191 |
