| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $32,233 | $17,290 |
| 2016 | $36,504 | $21,062 |
| 2017 | $37,352 | $22,980 |
| 2018 | $37,352 | $21,647 |
| 2019 | $39,006 | $21,989 |
| 2020 | $39,700 | $22,683 |
| 2021* | $40,621 | $23,400 |
| 2022* | $41,563 | $24,139 |
| 2023* | $42,528 | $24,902 |
| 2024* | $43,514 | $25,689 |
| 2025* | $44,524 | $26,501 |
