Inside read file 
usa 22 201
germany 22 202
france 23 101
clear_data germany
Inside refreshdata 0 | germany 
itemexists ...
clear_data usa
Inside refreshdata 1 | usa 
XS_Tk__Callback_Call error:Entry "1" not found at /usr/lib/perl5/site_perl/5.14.1/x86_64-linux-thread-multi/Tk.pm line 251.