I did run total of 1300 km/800 miles including 70 km/40 miles orienteering. Barefoot, maybe some 5%, not much. Mostly with fivefingers - kso evo at summer and bikila evo at winter and orienteering.
My achilles tendon troubles kept me from running for couple of first months of 2014, but I did run quite constantly shorter distances most of the year. I had running spike at june (280 km), but then the troubles came back. Quantity probably wasn't cause for troubles though, I stopped using calf compression sleeves and did some too fast running. Currently it seems that I have bit motivational troubles and it's winter, generally it's just not too nice to go out and there's too much snow - no trail running.. I think I'm slowly recovering from those achilles troubles... I have been doing calf raises quite a lot. At first doing just five single leg calf raises caused two days of achilles pain, so I first worked up to total of 500 repeats (in three sets) of two leg calf raises, then carefully started with single leg repeats and now I'm at 25 sigle leg repeats and while I get some mild feelings from achilles, it doesn't cause pain afterwards. Lack of running motivation is probably good thing now, it gives my achilles tendons a better chance to heal. Currently I'm running some 15-35 km/10-20mile a week, so it's not complete lack of motivation, there just are usually 1-2 days a week when I don't run, which makes me, a former everyday runner, feel like really lazy, incabable and weak minded. I don't mean that people that usually run like this would be like that, but those are the feelings I feel about myself.