According a new study published by Bloomberg, 1,750 fans per year get hurt by baseballs at MLB games. Some of the eye-opening details:

About 1,750 spectators get hurt each year by batted balls, mostly fouls, at major-league games, or at least twice every three games, a first-of-its-kind analysis by Bloomberg News has found. That’s more often than a batter is hit by a pitch, which happened 1,536 times last season, according to Elias Sports Bureau Inc.

Unlike the National Hockey League, which mandated netting behind the goal line and higher Plexiglas above the side boards after a teenage fan was hit by a puck and died in 2002, Major League Baseball has done little to reduce the risk. Its policy is that each team is responsible for spectator safety.

The article, which is worth reading in full, recaps a handful of terrifying incidents from the past few years, but also outlines the dilemma: The possibility of grabbing a foul ball — however slim — helps draw people to the game and can convince them to pay extra for seats with more action.

Most parks feature prominent warning signs and P.A. announcements warning fans of the dangers of batted and thrown balls, but obviously there’s no way to guarantee everyone will pay attention throughout a game. And adding netting for safety could alienate plenty of paying customers — especially those with season tickets and clear sightlines in foul-ball territory.