| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $52,212 | $37,824 |
| 2016 | $54,002 | $40,721 |
| 2017 | $55,923 | $41,160 |
| 2018 | $55,923 | $41,617 |
| 2019 | $57,743 | $41,119 |
| 2020 | $58,763 | $42,139 |
| 2021* | $60,673 | $42,607 |
| 2022* | $62,645 | $43,080 |
| 2023* | $64,681 | $43,558 |
| 2024* | $66,783 | $44,041 |
| 2025* | $68,953 | $44,530 |
