| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $48,646 | $25,841 |
| 2016 | $50,613 | $26,162 |
| 2017 | $52,565 | $25,639 |
| 2018 | $52,565 | $24,084 |
| 2019 | $55,820 | $24,976 |
| 2020 | $57,672 | $26,828 |
| 2021* | $59,898 | $27,161 |
| 2022* | $62,210 | $27,497 |
| 2023* | $64,612 | $27,838 |
| 2024* | $67,106 | $28,184 |
| 2025* | $69,696 | $28,533 |