| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2014 | N/A | N/A |
| 2015 | $36,328 | N/A |
| 2016 | $36,924 | N/A |
| 2017 | $37,892 | $32,117 |
| 2018 | $37,892 | $30,027 |
| 2019 | $39,308 | $37,155 |
| 2020* | $40,145 | $40,358 |
| 2021* | $41,000 | $43,837 |
| 2022* | $41,874 | $47,615 |
| 2023* | $42,766 | $51,720 |
| 2024* | $43,676 | $56,178 |
