Taking down Christmas lights math

I estimate that taking down the Christmas light show is 8 to 10x the speed of putting it up. The last two days I took down:

1. Arch tunnel
2. Arches
3. Wall lines
4. Lawn lines
5. Stairway lines
6. Trees
7. Tree trunks
8. Bushes
9. Megatree & star

It took about 6 hours.