Sometimes seeing something you know, generally, is happening plotted on a graph is still startling. From
https://www.powerlineblog.com/archives/2024/05/the-daily-chart-from-mainline-to-sideline.php :
The trend for theologically liberal "mainline Protestant" churches may be slightly worse, if theologically conservative denominations like the Missouri and Wisconsin synod Lutheran churches, which have been holding stead or only declining slightly are included in that chart.
Looking at a chart for the Southern Baptists and data for the Assemblies of God shows very different trends:
https://news.lifeway.com/2024/05/07/southern-baptist-membership-decline-slows-baptisms-and-attendance-grow/file:///C:/Users/PeterStorz/Downloads/Major%20Worship%20Service%20Attendance%201978%20through%202022.pdf
The SBC had been growing steadily until ~2006, and since has declined some. The AoG had been growing pretty steadily until 2020 and 2021, when a group of churches started reporting their statistics separately.
A less easy to measure group among Protestants is "non-denominational", and it looks like there may be a shift of people from Evangelical denominational churches to Evangelical non-denominational churches.
