The Pew article, A record number of women are serving in the 117th Congress by Carrie Elizabeth Blanzina and Drew Desilver (1/15/2021) reports:
Counting both the House of Representatives and the Senate, 144 of 539 seats – or 27% – are held by women. That represents a 50% increase from the 96 women who were serving in the 112th Congress a decade ago, though it remains far below the female share of the overall U.S. population.
The stacked bar chart copied here may be nice to look at but it is really hard to compare the changes in Republican women. A downside of the stacked bar chart.