| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $50,072 | $29,685 |
| 2016 | $51,530 | $32,953 |
| 2017 | $51,350 | $31,648 |
| 2018 | $51,350 | $30,105 |
| 2019 | $54,668 | $31,719 |
| 2020 | $57,724 | $34,775 |
| 2021* | $59,404 | $36,639 |
| 2022* | $61,132 | $38,603 |
| 2023* | $62,911 | $40,672 |
| 2024* | $64,742 | $42,852 |
| 2025* | $66,626 | $45,149 |
