| Year | Ballpark | Attendance | PFr | PFhr |
| 2017 | | 2,170,724 | | |
| 2018 | | 2,854,264 | | |
| 2019 | | 2,754,485 | | |
| 2020 | | 1,868,973 | | |
| 2021 | | 2,550,192 | | |
| 2022 | | 2,652,307 | | |
| 2023 | | 3,029,140 | | |
| 2024 | | 2,802,929 | | |
| 2025 | | 2,739,755 | | |
| 2026 | | 3,083,845 | | |
| 2027 | | 3,116,483 | | |
| 2028 | | 3,137,399 | | |
| 2029 | | 3,285,723 | | |
| 2030 | | 3,270,570 | | |
| 2031 | | 3,281,455 | | |
| 2032 | | 3,373,374 | | |
| 2033 | | 3,271,325 | | |
| 2034 | | 3,377,976 | | |
| 2035 | | 3,408,978 | | |
| 2036 | | 3,306,411 | | |
| 2037 | | 3,395,597 | | |
| 2038 | | 3,542,147 | | |
| 2039 | The Port of Seattle | 3,612,605 | 1.11 | 1.06 |
| 2040 | The Port of Seattle | 3,561,954 | 1.02 | 0.96 |
| 2041 | The Port of Seattle | 3,294,842 | 0.97 | 0.99 |
| 2042 | The Port of Seattle | 3,560,810 | 0.98 | 1.00 |
| 2043 | The Port of Seattle | 3,139,979 | 1.06 | 1.11 |
| 2044 | The Port of Seattle | 3,235,407 | 1.03 | 0.97 |
| 2045 | The Port of Seattle | 3,306,871 | 1.02 | 1.00 |
| 2046 | The Port of Seattle | 3,238,034 | 1.04 | 1.01 |
| 2047 | The Port of Seattle | 2,791,155 | 0.96 | 0.92 |
| 2048 | The Port of Seattle | 2,852,875 | 0.99 | 1.00 |
| 2049 | The Port of Seattle | 3,041,643 | 1.03 | 1.04 |
| 2050 | The Port of Seattle | 3,359,092 | 1.08 | 1.09 |
| 2051 | The Port of Seattle | 3,406,228 | 1.00 | 0.98 |
| 2052 | The Port of Seattle | 3,439,956 | 0.94 | 0.95 |
| 2053 | The Port of Seattle | 3,459,649 | 0.98 | 1.06 |
| 2054 | The Port of Seattle | 3,509,995 | 0.99 | 0.98 |
| 2055 | The Port of Seattle | 3,402,956 | 0.97 | 0.87 |
| 2056 | The Port of Seattle | 3,385,733 | 0.95 | 0.92 |
| 2057 | The Port of Seattle | 3,240,017 | 0.95 | 0.93 |
| 2058 | The Port of Seattle | 3,186,317 | 1.07 | 1.01 |
| 2059 | The Port of Seattle | 3,462,962 | 1.04 | 1.04 |
| 2060 | The Port of Seattle | 3,438,189 | 1.05 | 1.06 |
| 2061 | The Port of Seattle | 2,873,970 | 0.98 | 0.96 |
| 2062 | The Port of Seattle | 1,914,587 | 0.91 | 0.90 |
| 2063 | The Port of Seattle | 2,675,322 | 1.03 | 0.96 |
| 2064 | The Port of Seattle | 2,158,806 | 0.94 | 0.96 |
| 2065 | The Port of Seattle | 3,377,253 | 1.01 | 0.95 |
| 2066 | The Port of Seattle | 2,817,129 | 0.99 | 0.95 |
| 2067 | The Port of Seattle | 3,141,498 | 0.94 | 0.89 |
| 2068 | The Port of Seattle | 2,722,147 | 1.06 | 1.05 |
| | 1.00 | 0.98 |
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