"I'm attaching link showing there were 60 ‘Allahu Akbar’ attacks in Europe just in the period 2014 to 2016."
The trend actually looks more alarming if you look at the patterns of attempted terrorist attacks. On this page, each paragraph represents all the attempted attacks per year. Notice anything? The paragraphs get longer and longer with each passing year, growing at a very rapid rate since 2011.
en.wikipedia.org/wiki/List_of_thwarted_Islamist_terrorist_attacks
The number of people dying in terror attacks in Europe is actually not (yet) higher than the numbers dying in the last peak, in the 1970s (=Basque separatists, leftists and the IRA, if I remember rightly).
That said, this has to be understood in the context of, we have much much better intelligence than we used to and far more surveillance in every aspect of life.
If we didn't have said surveillance and intelligence, we'd have a much more serious situation.
So far, the situation is not too bad--like I say, we still have somewhat fewer terrorism causalities than we did in the 1970s. The problem is that:
A: As the number of potential terrorists keeps rising, TPTB are having to track more and more people. They've been able to keep a lid on this, mostly, up to now. But if the numbers continue to rise we are going to be faced with a situation where there are simply too many people for the police and intelligence to keep tabs on.
B: As surveillance continues to increase, we are all paying a price in terms of reduced liberty and restrictions on our personal freedoms.