Health state of the disk: 27%

hello
i m not a computer scientist.
i have been working with a Seagate disk ST340810A . 40 Go
for a long time.
Is this disk really in a critical state ?
Read Error Rate,150993918,60,25,OK
Spin-Up Time,0,98,0,OK
Start/Stop Count,149,100,20,OK
Reallocated Sectors Count,229,78,36,Échec (failure)
Seek Error Rate,4448123805,81,30,OK
Power-On Hours (POH),4110,96,0,OK
Spin Retry Count,0,100,97,OK
Power Cycle Count,2404,98,20,OK
Temperature,39,39,0,OK
Hardware ECC Recovered,0,100,0,OK
Current Pending Sector Count,7,100,0,Détérioration
Uncorrectable Sector Count,0,100,0,OK
UltraDMA CRC Error Count,42,200,0,OK
Write Error Rate/Multi-Zone Error Rate,0,100,0,OK
Data Address Mark Errors,0,100,0,OK

thank you for your answer