The format for all time series is:
year1 yearN
year1 janval febval marval aprval mayval junval julval augval sepval octval novval decval
year2 janval febval marval aprval mayval junval julval augval sepval octval novval decval
...
yearN janval febval marval aprval mayval junval julval augval sepval octval novval decval
missing value
Please let me know if you have other index time series
for possible inclusion. I update the values when I can; sometimes
they may be out-of-date. Sometimes old values change when new data
is received, the index definition changes or mistakes are found. I
don't make any guarantees though I will fix any errors I find out
about. Use at your own risk. You can email me at
psl.data@noaa.gov for any suggestions or comments.