This is the current stats:
2010, Stockholm, Sweden: 1 Islamist blew himself up. 1 dead 2 injured.
2011, Frankfurt, Germany: 1 Islamist shot at people. 2 Dead 2 injured.
2011, Liege, Belgium: Muslim man fires a FN FAL Military grade rifle at random people in a square park. 7 dead 125 injured.
2012, Montauban, France: Islamist shoots at people. 2 dead, 1 injured.
2012, Toulouse, France: Same islamist ^ shoots people. 4 dead 1 injured.
2012, Burgas, Bulgaria: Suicide bomber. 7 dead 30 injured.
2014, Brussels, Belgium: Islamist shot at people. 4 dead 0 injured.
2015, Paris, France: Islamist shot people. 20 Dead 22 injured.
2015, Copenhagen, Denmark: Islamist opens fire. 2 civilians dead 5 agents injured.
2015, Paris, France: ISIS attack Bataclan and cafés. 137 Dead 368 injured.
2015, London, England: Islamist stabs random people. 3 injured.
2016, Brussels. Belgium: Suicide bombers. 35 Dead 330 injured.
There is a reason the hate of islam is on the rise, and its a damn good one.
What will happen next time?
In Belgium - Anti Radiation pills have been given to its citizens. WTF..
It's tragic list really but nobody can predict when and where next terrorist attack will happen.
We only know one thing for sure, that next attack is inevitable and that our security forces should do their best to prevent it.
Only long term solution to this problem is to help local governments in Afghanistan, Pakistan, Iraq, Syria etc. to slowly build more democratic societies, with more freedom but also help them economically.
Poverty, war and religious radicalism are main fuel for terrorism.