duration         period 
41.58522         1
22.57358          1
3.854894          1
13.71663          1
13.6564          1
 0.605065          1
0.2491444          1
0.9637235          1
9.976728          1
2.223135          1
 15.01164          1
1.357974          1
 19.52088          1
 20.91171          1
 22.65845          1
19.02806          1
7.901437          1
12.79124          1
 0.238193          1
0.1779603          1
17.82067          1
3.849418          1
0.9993156          1
 6.173853          1
 1.711157          1
 1.158111          1
 0.0848734          1
3.819302          1
12.96646          1
 3.123888          2
 0.0136893          2
 0.0136893          2
 0.2874743          2
 0.2874743          2
 5.582478          2
 5.667351          2
1.705681          2
2.168378          2
2.001369          2
 0.1670089          2
 6.918549          2
 14.47502          2
 1.957563          2
 0.0027378          2
 5.040383          2
 0.7665982          2
0.2902122          2
 6.124572          2
0.9144422          2
2.540725          2
1.295003          2
 20.44627          3
24.55031          3
13.3963          3
 17.97947          3
 1.409993          3
6.001369          3
30.82546          3
 15.85489          3
 8.167009          3
2.584531          3
12.35866          3
 25.1499          3
 3.362081          3
0.6433949          3
11.72622          3
  14.3655          3
16.00274          3
 16.47912          3
15.99452          3