elmo.2005 elmo.2008 elmo.2012 
0.270011 NaN NaN 
0.860018 NaN 0.347493 
0.469096 NaN 0.526806 
0.265064 0.363338 0.583912 
0.503283 0.417279 0.641687 
0.453501 0.29881 0.699441 
0.469347 0.295425 0.659723 
0.497368 0.328407 0.479709 
0.47638 0.375847 0.459713 
0.348409 0.386115 0.481842 
0.260018 0.453766 0.164247 
0.261437 0.34089 0.181898 
0.279838 0.328247 0.267842 
0.386696 0.33929 0.38372 
0.480966 0.330899 0.445759 
0.457766 0.422701 0.418967 
0.410519 0.453259 0.332731 
0.386938 0.409648 0.378275 
0.331471 0.360326 0.48895 
0.184523 0.347728 0.424918 
0.150144 0.359569 0.333825 
0.273859 0.446897 0.234847 
0.44676 0.550083 0.13985 
0.471661 0.651685 0.22421 
0.49197 0.664296 0.336522 
0.40756 0.630592 0.419304 
0.602788 0.480729 0.590538 
0.649717 0.358047 0.631658 
0.534185 0.393975 0.597102 
0.418989 0.440176 0.540115 
0.401004 0.410297 0.366926 
0.442496 0.443775 0.3264 
0.465188 0.461113 0.321763 
0.43094 0.456387 0.2672 
0.326005 0.330759 0.304422 
NaN 0.487184 0.335512 
NaN 0.427984 0.31609 
NaN 0.337937 NaN 
NaN 0.502453 NaN