anno   jd   value 
2021   259  11.0  
2021   260  -999.0
2021   261  7.0   
2021   262  7.0   
2021   263  3.0   
2021   264  5.0   
2021   265  6.0   
2021   266  5.0   
2021   267  9.0   
2021   268  12.0  
2021   269  12.0  
2021   270  11.0  
2021   271  14.0  
2021   272  19.0  
2021   273  17.0  
2021   274  15.0  
2021   275  13.0  
2021   276  11.0  
2021   277  11.0  
2021   278  6.0   
2021   279  3.0   
2021   280  4.0   
2021   281  5.0   
2021   282  7.0   
2021   283  4.0   
2021   284  6.0   
2021   285  10.0  
2021   286  8.0   
2021   287  7.0   
2021   288  11.0  
2021   289  14.0  
2021   290  19.0  
2021   291  17.0  
