| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2014 | $57,650 | $31,541 |
| 2015 | $58,260 | $32,151 |
| 2016 | $59,560 | $31,800 |
| 2017 | $60,350 | $30,356 |
| 2018 | $60,350 | $29,322 |
| 2019 | $63,360 | $29,697 |
| 2020* | $64,203 | $29,373 |
| 2021* | $65,057 | $29,053 |
| 2022* | $65,922 | $28,736 |
| 2023* | $66,799 | $28,423 |
| 2024* | $67,687 | $28,113 |
