Statistics does not reflect execution plan

Hi everyone,

Oracle database server 11.2.0.3 using ASM (grid 11.2.0.3)

The ORDER table has 17Millions records in it. If you look at the explain plan obtained in autotrace mode, and if my understanding of the cost is correct, it does not match the 4 consistent gets in the statistics. If I search in v$sql_plan I find the exact same plan. What is wrong in my interpretation?

NAME                                 TYPE        VALUE

------------------------------------ ----------- ------------------------------

optimizer_index_cost_adj             integer     100

db_file_multiblock_read_count        integer     128

var b1 VARCHAR2(4000)

var b2 NUMBER

var b3 NUMBER

var b4 NUMBER

var b5 NUMBER

var b6 VARCHAR2(2000)