are you a diabetic? have you got retina checked up for any other abnormalities?
floaters are very common in old age and even lot of individuals get .
sometimes they appear more in visual field some times few so cant say that its increasing if you see some time more in no.
Next Steps
get eye examination in detail including retina examination under dilatation to rule out any pathology
Health Tips
normal floaters either you have to be friendly or ignore them so will not bother you.if you are under stress or idle they visible more in no due to your focus.