Hurricane Severity + Years

After looking at Data Set #2, I realized I was most curious about the change (if any) of severity of hurricanes over the course of the 159 years of data. 

Points to consider: are there more hurricanes now than there were in mid 1800s? Are there fewer, but they're more severe? Are there the same amount, but they've become more frequent in a certain location? 

I'm still torn on whether I should literally map it out, or arrange it in some other way. I THINK the years + category combination is more important than the exact location. But I haven't nailed it down exactly. Considered plotting points with various colors/sizes, but I'm not sold.

Hurricane Severity + Years - image 1 - student project