And you are not believing stats released by one of the least corrupt democracy of the West.
There was one grenade launched in Sweden in August last year. There's at least 1 killed by a semi auto in the US per day. Sweden has near zero homicide rate.
edit: it seems there was more than 'one' explosions in Sweden, but looking at the wikipedia article history linked below doesn't fill me with confidence considering how the language used has changed between august when the article was made and now. Also note how the wikipedia editors write about organized crime using old grenades from WWII and not migrants bombing Swedish people.