SQL & PL/SQL :: Count Of Records In Item List

One of the tables is having

SQL> select count(1) from item_list;

COUNT(1)
----------
14356529

To fetch the count using the above query , it takes 6 mins. There are no other processes running in the DB. The fragmentation % on this table is showing 16.3%

I tried finding the fragmentation using the below query.

select table_name,
round((blocks*8),2) "table size kb",
round((num_rows*avg_row_len/1024),2) "actual data in table kb",
round((blocks*8),2)- round((num_rows*avg_row_len/1024),2) "wasted space kb",
((round((blocks*8),2)- round((num_rows*avg_row_len/1024),2)) / (round((blocks*8),2)) ) *100 "percent fragmented"
from dba_tables
where table_name like ITEM_LIST%'
and owner = 'TEST_USR'
and blocks != 0
order by 4 desc

TABLE_NAME table size kb actual data in table kb
------------------------------ ------------- -----------------------
wasted space kb percent fragmented
--------------- ------------------
ITEM_LIST 5163360 4318302.27
845057.73 16.3664306