7350
#&gt; 14:               NA           median  0.046125736
#&gt; 15:               NA             mean -0.057929853
#&gt; 16:               NA           median  0.140366680
#&gt; 17:               NA             mean -0.388849478
#&gt; 18:               NA           median -1.207701427
#&gt; 19:               NA             mean  0.042334184
#&gt; 20:               NA           median -0.381653696
#&gt; 21:               NA             mean  0.907293957
#&gt; 22:               NA           median  1.0332