Riders born in 1990 have now won 100 grand tour stages. Could be more if I've left someone out.
Numbers for each year
2023 - 3 - Matthews, Bilbao, Kwiatkowski
2022 - 5 - Bennett x 2, Matthews, Houle, Herrada
2021 - 2 - Sagan, Bardet
2020 - 6 - Bennett x 3, Tratnik, Sagan, Kwiatkowski
2019 - 10 - Bilbao x 2, Quintana x 2, Bennett x 2, Chaves, Sagan, Pinot, Herrada
2018 - 17 - Bennett x 3, Dennis x 3, Sagan x 3, Dumoulin x 2, Pinot x 2, Chaves, Fraile, Quintana, Bouhanni
2017 - 11 - Dumoulin x 2, Matthews x 2, Dillier, Quintana, Fraile, Pinot, Sagan, Aru, Bardet
2016 - 10 - Dumoulin x 3, Sagan x 3, Chaves, Matthews, Bardet, Quintana
2015 - 12 - Aru x 2, Chaves x 2, Dumoulin x 2, Matthews, Dennis, Bardet, Pinot, Sagan, Sbaragli
2014 - 12 - Bouhanni x 5, Aru x 3, Matthews x 2, Quintana x 2
2013 - 4 - Matthews x 2, Sagan, Quintana
2012 - 5 - Sagan x 3, Phinney, Pinot
2011 - 3 - Sagan x 3
Total - 100
Totals by rider
18 - Sagan
10 - Matthews, Bennett
9 - Dumoulin
8 - Quintana
6 - Pinot, Bouhanni, Aru
5 - Chaves
4 - Dennis, Bardet
3 - Bilbao
2 - Fraile, Kwiatkowski, Herrada
1 - Phinney, Sbaragli, Dillier, Tratnik, Houle