What year has been the most remarkable activity of UFOs 19:70. 19.75 ?

[Gabor Sweden751110]

Someone who knows

What year has been the most remarkable activity of UFOs or other oddities?
Was  in 70s more than 90 Unusual 80s 2000s ?   

or was under war world 2 ... start ,,  showing up  more ufo ,,, wean we start fly airplane  more and more ,

I am born 1975 ,,,

I have too see ufo wan was  18 or 19 age old in sky in evening  in Sweden ,,..

what every ,,

i  looking after  some year ,, not like other year  .

[Uncle Duke]

Someone who knows

What year has been the most remarkable activity of UFOs or other oddities?
Was  in 70s more than 90 Unusual 80s 2000s ?   

or was under war world 2 ... start ,,  showing up  more ufo ,,, wean we start fly airplane  more and more ,

I am born 1975 ,,,

I have too see ufo wan was  18 or 19 age old in sky in evening  in Sweden ,,..

what every ,,

i  looking after  some year ,, not like other year  .

Depends on location.  In the US, 1952 and 1973 are generally considered years with the greatest UFO activity.  Mexico had a large number of sightings in 1991.  Sweden had the "ghost rocket" sightings of 1946.