neo4j - How to classify the attributes according to the attribute -

i have entity class this:

@nodeentity public class patent {      @graphid     private long patentid;      private string patentname;      //2016-02-01     private string authorizedtime;      private string patentnumber;      @fetch     @relatedto(type = "authorizedperson")     private set<researcher> authorizedpersons = new hashset<researcher>();      private string createtime;      private string description; 

i want result this:

year     total
2013      6
2014      7

i try use cypher query:

match (n1:patent) collect( distinct substring(n1.authorizedtime,0,4)) coll,substring(n1.authorizedtime,0,4) val return coll, reduce(s=0, val in coll | s + 1) numbyy ; 

but no success.

how classify attributes according attribute?

thanks lot!

this query should return each year , number of nodes year, ordered year:

match (n1:patent)  return left(n1.authorizedtime, 4) year, count(*) total  order year;