| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $39,750 | $24,958 |
| 2016 | $40,980 | $25,954 |
| 2017 | $41,878 | $26,923 |
| 2018 | $41,878 | $25,863 |
| 2019 | $44,732 | $27,131 |
| 2020 | $42,586 | $24,985 |
| 2021* | $43,519 | $25,917 |
| 2022* | $44,472 | $26,884 |
| 2023* | $45,446 | $27,886 |
| 2024* | $46,441 | $28,927 |
| 2025* | $47,458 | $30,006 |