ALL            n=189 median da=-0.08 mean=-0.09 frac<0=0.80 -> median factor 10^da=0.83
CONUS+HI       n= 83 median da=-0.06 mean=+0.04 frac<0=0.73 -> median factor 10^da=0.87
Alaska         n= 56 median da=-0.39 mean=-0.31 frac<0=0.79 -> median factor 10^da=0.41
Marianas/Guam  n= 44 median da=-0.08 mean=-0.09 frac<0=0.98 -> median factor 10^da=0.83
Non-US         n=  6 median da=+0.20 mean=+0.27 frac<0=0.50 -> median factor 10^da=1.60
--- generic a by depth, and median a(day 30) - a(generic)
Alaska         shallow n= 56 generic a values [-2.85, -2.47, -2.42, -2.34] median shift by day 30 -0.36
Alaska         deep    n= 10 generic a values [-2.47] median shift by day 30 -0.50
Marianas/Guam  shallow n= 29 generic a values [-2.47, -2.43, -2.42, -2.34] median shift by day 30 -0.10
Marianas/Guam  deep    n= 15 generic a values [-2.47, -2.34] median shift by day 30 -0.14