Of the 4,555 SOTA peaks in Oregon and Washington, 196 have been activated (4%).

 The majority of the activations were just one time, but there are some popular spots with Mt. Erie, Mt. Hebo, Marys Peak and Bald Peak being the most popular with six and seven activations each. The average number of activations has been about 1.8 each and the average points for these activated peaks was about 3.7. 

Activations Peaks
1 111
2 51
3 19
4 7
5 4
6 2
7 2

 

Score Peaks
1 45
2 53
4 35
6 41
8 15
10 7

(Sorry that I didn't include Idaho - next time...)