| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $51,050 | $37,377 |
| 2016 | $52,660 | $38,956 |
| 2017 | $54,780 | $39,957 |
| 2018 | $54,780 | $39,143 |
| 2019 | $59,570 | $40,919 |
| 2020 | $60,030 | $41,379 |
| 2021* | $61,921 | $42,442 |
| 2022* | $63,871 | $43,533 |
| 2023* | $65,883 | $44,652 |
| 2024* | $67,959 | $45,800 |
| 2025* | $70,099 | $46,977 |