Increase of energy storage in the ocean (G of surface energy balance)

40-year (1955-1995) average incrase rate of storage is about 0.3 W / m^2.
[The figure shown here was taken from
R.A. Pielke Sr., 2003, Bull. Amer. Meteorol. Soc., 84, 331-335,
which was drawn by Alan Robock
based on the result shown by Levitus et al. 2001.]