So far in 2003, 60 motorcycle riders have died in accidents in Wisconsin (as of July 16). That is more than twice the normal number at mid year, and about 14 percent of all the state's vehicle-related deaths this year. There were 78 motorcycling fatalities in Wisconsin during all of 2002, just under 10 percent of the total number of traffic deaths in the state. And the big motorcycling event, Harley-Davidson's 100th anniversary celebration, doesn't happen until the end of August. What's more, the second half of the year typically has more accidents in the state than the first six months. Aside from an increase in deer on the roads (white-tailed deer are the state animal), however, there doesn't seem to be any obvious single cause for the increase. Wisconsin has no helmet law, but it has not had one for years. Motorcycle sales have risen in Wisconsin, as they have elsewhere, but not at a rate as great as fatalities. The total number of vehicle fatalities in the state is up about 14% for the year, from 390 last year to 444, this year, and motorcyclists account for more than half that increase.