Three things -
1.) Another way of looking at the stats provided above is that the US is winning 10-11% of distance track medals. Outside of Kenya/Ethiopia, who is doing better?
2.) I came of age in running during the 2000s where we were largely a joke on the global stage. The US won 6 total medals 2000 - 2009, half of which came from Lagat alone! (Lagat x3, Goucher, Flanagan, Rowbury) and none of those came before 2007! If you would have told 2005 Kenneth Copeland (yet to be a verified millionaire, but well on his way) that we'd be winning 10% of the medals, I'd told you to gtfo. And this isn't even taking into account the US' overall improvement in depth.
3.) You should probably include the 800 as well. That would include 3 more men's medals (Symmonds, Murphy, Braizer) and 8 (Montano x2, Martinez, Wilson x2, Rogers x2, and Mu) for a grand total o 11 more medals. For comparison's sake, we won ZERO in the 2000s!
3.1) Should probably at least mention that the marathon we was Rupp for the men and Siedel and Cragg for the women. This might be a harder comparison because of field sizes and the WC marathon not holding as much prestige as the track events and the effect the majors have, but still we've made progress here - just not as much as the other events.