In an earlier thread, Nabih introduced the concept of levels.

Your flag counter is -
Level 1 if your #1 Flag >= 1 Visitor
Level 2 if your #2 Flag >= 2 Visitors
Level 3 if your #3 Flag >= 3 Visitors
etc.

The above will be a Power 1 level.

Now, for a power 10 level, your flag counter is -
Level 1 if your #1 Flag >= 10 Visitors
Level 2 if your #2 Flag >= 20 Visitors
Level 3 if your #3 Flag >= 30 Visitors
etc.

Power 100 level:
Level 1 if your #1 Flag >= 100 Visitors
Level 2 if your #2 Flag >= 200 Visitors
Level 3 if your #3 Flag >= 300 Visitors
etc.

And so on.......

My flag counter's POWER levels are:
Power 1: Level 17
Power 10: Level 6
Power 100: Level 3
Power 1000: Level 1
Power 10000: Level 0

Easier notation - (17,6,3,1,0)

For me to reach the next level for each power:
Power 1: Singapore +1, Poland +4
Power 10: Australia +2, Germany +24
Power 100: Canada +45, Spain +252
Power 1000: USA + 911, UK +1445
Power 10000: USA + 9911

The main flag counters POWER levels are - (150,115,65,32,11,2,0)