anno   jd   value 
2021   259  19.0  
2021   260  -999.0
2021   261  18.0  
2021   262  14.0  
2021   263  19.0  
2021   264  15.0  
2021   265  15.0  
2021   266  12.0  
2021   267  21.0  
2021   268  21.0  
2021   269  37.0  
2021   270  40.0  
2021   271  33.0  
2021   272  30.0  
2021   273  25.0  
2021   274  21.0  
2021   275  20.0  
2021   276  15.0  
2021   277  18.0  
2021   278  11.0  
2021   279  9.0   
2021   280  10.0  
2021   281  11.0  
2021   282  11.0  
2021   283  6.0   
2021   284  10.0  
2021   285  14.0  
2021   286  13.0  
2021   287  9.0   
2021   288  16.0  
2021   289  17.0  
2021   290  24.0  
2021   291  21.0  
