| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | $51,790 | $49,049 |
| 2016 | $53,722 | $44,149 |
| 2017 | $55,958 | $44,837 |
| 2018 | $55,958 | $44,567 |
| 2019 | $59,926 | $48,089 |
| 2020 | $62,816 | $50,979 |
| 2021* | $65,429 | $51,774 |
| 2022* | $68,151 | $52,582 |
| 2023* | $70,986 | $53,402 |
| 2024* | $73,939 | $54,235 |
| 2025* | $77,015 | $55,081 |
