| season,drift_raw,n_sequences,drift_norm,subtype |
| 2009-10,0.7714298,646,0.5,H1N1 |
| 2010-11,0.24803342,134,0.0,H1N1 |
| 2011-12,0.47171873,42,0.42737266421318054,H1N1 |
| 2012-13,0.3335715,34,0.16342885792255402,H1N1 |
| 2013-14,0.50378764,112,0.48864349722862244,H1N1 |
| 2014-15,1.3686155,140,1.0,H1N1 |
| 2015-16,1.6669637,1524,1.0,H1N1 |
| 2016-17,0.22882858,548,0.0,H1N1 |
| 2017-18,0.5731173,1146,0.23939943313598633,H1N1 |
| 2018-19,0.25530037,2432,0.018407028168439865,H1N1 |
| 2019-20,0.432361,2032,0.1415252387523651,H1N1 |
| 2020-21,0.30452573,12,0.05263563245534897,H1N1 |
| 2021-22,0.5452242,105,0.22000408172607422,H1N1 |
| 2022-23,0.36801317,2158,0.09678130596876144,H1N1 |
| 2023-24,0.2231203,6766,0.0,H1N1 |
| 2024-25,0.5080023,6155,0.19730809330940247,H1N1 |
| 2025-26,0.5233228,89,0.20791903138160706,H1N1 |
|
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