Not only that, but the dataset doesn't have even time spacing. In the earlier years, it skipped a couple months, and only recently did it start to do every mon

Not only that, but the dataset doesn't have even time spacing. In the earlier years, it skipped a couple months, and only recently did it start to do every month. However, that's not reflected in the visualization, and we're lead to believe that this is sampled with even steps over time.