| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $43,120 | $26,764 |
| 2016 | $43,556 | $25,698 |
| 2017 | $44,650 | $26,138 |
| 2018 | $44,650 | $25,920 |
| 2019 | $46,606 | $23,149 |
| 2020 | $47,601 | $24,144 |
| 2021* | $48,615 | $23,944 |
| 2022* | $49,650 | $23,745 |
| 2023* | $50,708 | $23,548 |
| 2024* | $51,788 | $23,352 |
| 2025* | $52,891 | $23,159 |