Annual sea surface temperature anomalies averaged over the part of the ocean that is free of ice at all times (open ocean) fro 1880 to 2017.
The format is: Time-Series [1:138] from 1880 to 2009: -0.05 0.01 0.00 -0.06 -0.15 ...
http://www.stat.pitt.edu/stoffer/tsa4/ and http://www.stat.pitt.edu/stoffer/tsda/