| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $46,960 | $24,610 |
| 2016 | $49,340 | $25,556 |
| 2017 | $51,510 | $25,038 |
| 2018 | $51,510 | $24,125 |
| 2019 | $54,520 | $23,761 |
| 2020 | $57,210 | $26,451 |
| 2021* | $60,030 | $26,052 |
| 2022* | $62,990 | $25,658 |
| 2023* | $66,095 | $25,271 |
| 2024* | $69,354 | $24,889 |
| 2025* | $72,773 | $24,513 |