I wanted to see if there was more plate appearances by left handed hitters now compared to 35 years ago. I know this isn't earth shattering information, but maybe a couple people will find it interesting/useful.
I was looking to see if more balls would be hit to the right side of the field by left handed hitters than to the left side by right handed hitters. Here is a graph of the yearly totals of the last 35 years with a line of the 5 year average.
Not too much to take from it except that there does seem to be some increase trend of left handed plate appearances now compared to 35 years ago.