(@sarahobolt @bjornhoyland @ggbenedetto @CatherineDVries @GoodwinMJ @tabouchadi @sd270 @markhleonard @kevcunningham @mvanhulten @dorufrantescu). Here's the first one
S&D 38.2% in May94
EPP 37.4% in May04
ALDE 14.8% in Jul19
EAPN 10.5% in Jul19 (but might go higher in next few weeks)
ECR 10.0% in Ma19 (but might go higher in next few weeks)
G/EFA 9.7% in Jul19
GUE 6.9% in Jul14
EFDD 5.5% in May19
1979-84 Liberal
1984-89 Liberal
1989-94 Rainbow
1994-99 European Radical Alliance
1999-2004 Liberal
2004-09 Liberal
2009-14 European People's Party
2014-19 European People's Party
2019-24 Liberal