elmo.2005 elmo.2008 elmo.2012 
NaN 0.476625 NaN 
NaN 0.683409 0.55045 
NaN 0.576243 0.56409 
NaN 0.412838 0.511454 
NaN 0.581021 0.597468 
NaN 0.932736 0.531358 
NaN 0.759212 0.393882 
0.286077 0.670051 0.624567 
0.426177 0.765886 0.325299 
0.349923 0.815498 0.619464 
0.53064 0.839494 0.593 
0.681296 0.557192 0.613786 
0.472674 0.580083 0.559524 
0.395206 0.475954 0.61453 
0.424147 0.436776 0.62648 
0.228785 0.270151 0.467006 
0.466203 0.779057 0.386433 
0.537068 0.556057 0.483963 
0.560724 0.533932 0.604074 
0.658438 0.585039 0.742149 
0.632488 0.586612 0.945091 
0.73189 0.554518 0.738348 
0.517208 0.605564 0.528595 
0.151538 0.7299 0.859473 
0.12325 0.31859 0.253022 
0.236371 0.471906 0.146727 
0.435937 0.382803 NaN 
0.38558 0.347697 NaN 
NaN 0.209073 NaN