The table at the wiki site implies that it is total electric generation. I suspect Iowa generates more than it uses. It came out to 20,000 gwhr in 2016 and we are way ahead of that this year. Considering the last 3 days of trying to ride a motorcycle and the wind almost making it impossible we might be in for quite a wind power year. It's nice that the wind often blows hardest in the afternoon when demand is up.
PS watchout for trolls.
https://en.wikipedia.org/wiki/Wind_power_in_Iowa
Hah. Did you try riding your bicycle? Every day was a tale of two rides (headwinds on the way out, tailwinds on the way back)!