How did the median number of crosscuts change over the years?

For each year, I have calculated the median for the number of crosscuts, over all games for that year. Before 1800, the sample sizes are too small to produce meaningful data.

As you can see, the median number of crosscuts has increased over the last decades, maybe implying that games have become more aggressive.

Click and drag on the small bottom chart to pan and zoom the main chart.