I had a total of twelve items--four on race discussed in my post from last week, and eight others from January. They were measured on different scales, so you have to standardize them in order to compare the size of the changes. I did that by using the standard deviation of differences among annual means. The three largest differences all involved questions about race--the fourth question on race (affirmative action) was in the middle of the pack. So it seems that opinions about race did change more than other opinions. Still, there was also a general liberal movement.
I made a simple index by adding together all the means. Here are the values form 1994-2018, with lower meaning more liberal:
Five of the items, all involving spending on various domestic issues, go back to the 1970s. The index for them:
The red line includes an adjustment for the estimated effect of party control. There's no clear trend since the late 1980s, just ups and downs. But overall, it seems like opinion on these issues is as liberal as it's ever been.