The chart  below shows the average number of citations a typical paper gets over many years. These numbers are averages over many papers and many years. Some papers get thousands of citations and others get no citations. The distribution is very skewed. Majority of scientific papers do not get any citations.
The chart indicates that the citation practice varies widely according to the discipline.
 Robert Adler, John Ewing and Peter Taylor, “Citation Statistics”, Statistical Science, 2009, Vol. 24, No. 1, 1–14 (arXiv)