SQL 2005 query help if you could.

I have a table with around 800,000 enteries.
The problem is 1 of the fields has data saved like this

1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20(most enteries are differant, did 1-20 as an example)

Wont let me insert image

I need to change 6 9 and12 to 5 (if it is currenlty greater then 5) but i have no idea how, and as i said before each enterie is differant.

If anyone could help it would be great.

Thanks

Based on the sample that you have posted here, can you also post the expected result. That will give a clear picture of the requirement.

Would like this
1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20

to become

1-2-3-4-5-5-7-8-5-10-11-5-13-14-15-16-17-18-19-20

As long as they are greater then 5.

thanks