What is causing this packet loss?

My server is responding badly when I am in ssh. I did a traceroute and got this:

Code: 
  1   146 ms   103 ms   102 ms  ts006e01.per-md.concentric.net [206.173.56.3]
  2   130 ms   117 ms   109 ms  206.173.56.1
  3   138 ms   206 ms   104 ms  209.220.97.101
  4   161 ms   132 ms   133 ms  a14-0d122.tran1.chi-il.us.xo.net [207.88.50.197]
  5   154 ms   143 ms   134 ms  ge1-0.edge1.chi-il.us.xo.net [64.220.0.181]
  6   322 ms   141 ms   234 ms  207.88.50.242
  7   289 ms   496 ms   345 ms  pos6-0-2488M.cr2.CHI1.gblx.net [208.49.59.209]
  8   315 ms   392 ms   235 ms  pos1-0-622M.cr1.HOU1.gblx.net [206.132.116.126]
  9   371 ms   251 ms   245 ms  pos0-0-155M.ar1.TPA1.gblx.net [206.132.116.98]
 10     *        *        *     Request timed out.
 11   308 ms     *      307 ms  sg1.indexthis.net [66.33.60.115]
Is the packet loss being caused by my server, or is it the fault of my upstream provider (Dialtone Internet)? And what's the deal with hop #10---is that a router that doesn't respond to pings?

 

 

 

 

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