| season,drift_raw,n_sequences,drift_norm,subtype |
| 2009-10,0.8477036,7,0.5,H3N2 |
| 2010-11,0.6334858,143,0.0,H3N2 |
| 2011-12,0.3519109,73,0.0,H3N2 |
| 2012-13,0.8725027,1091,1.0,H3N2 |
| 2013-14,0.49330258,86,0.2715980112552643,H3N2 |
| 2014-15,0.4262904,1432,0.14287491142749786,H3N2 |
| 2015-16,0.43483016,1238,0.15927886962890625,H3N2 |
| 2016-17,0.53643715,2591,0.35445481538772583,H3N2 |
| 2017-18,0.7152295,2414,0.6978954076766968,H3N2 |
| 2018-19,1.0809436,3758,1.0,H3N2 |
| 2019-20,1.0485971,929,0.9556309580802917,H3N2 |
| 2020-21,1.0847085,82,1.0,H3N2 |
| 2021-22,0.13375942,5129,0.0,H3N2 |
| 2022-23,0.72480536,3827,0.6215327382087708,H3N2 |
| 2023-24,0.9766187,5038,0.8863348960876465,H3N2 |
| 2024-25,0.3138974,6957,0.18942968547344208,H3N2 |
| 2025-26,1.1456091,520,1.0,H3N2 |
|
|
