| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $53,120 | $30,947 |
| 2016 | $54,892 | $31,671 |
| 2017 | $56,936 | $33,069 |
| 2018 | $56,936 | $34,652 |
| 2019 | $60,172 | $34,674 |
| 2020 | $61,466 | $35,968 |
| 2021* | $63,519 | $37,310 |
| 2022* | $65,640 | $38,701 |
| 2023* | $67,833 | $40,145 |
| 2024* | $70,099 | $41,642 |
| 2025* | $72,440 | $43,195 |
