Year  OrigPDI HadISST AdjPDI
1949  10.82  27.81  9.25
1950  30.64  27.92  26.2
1951  16.66  28.11  14.25
1952  10.41  28.37  8.9
1953  11.46  28.08  9.8
1954  13.45  27.81  11.5
1955  24.73  28.06  21.35
1956  7.08  27.69  5.3
1957  10.26  28.16  8.7
1958  14.62  28.20  12.5
1959  8.77  27.68  7.5
1960  12.96  27.86  10.2
1961  26.78  27.88  22.9
1962  3.74  27.97  3.2
1963  14.11  27.94  11.95
1964  20.77  27.58  18.05
1965  10.06  27.80  8.6
1966  17.42  28.05  14.9
1967  14.09  27.78  12.05
1968  3.18  27.74  3.65
1969  18.30  28.25  15.65
1970  3.75  27.88  3.75
1971  9.25  27.61  9.25
1972  2.9  27.52  2.9
1973  4.15  27.79  4.15
1974  7.5  27.46  7.5
1975  7.8  27.63  7.8
1976  8.6  27.94  8.6
1977  2.95  27.72  2.95
1978  6.6  27.59  6.6
1979  11.85  28.09  11.85
1980  19.3  28.20  19.3
1981  9.95  27.96  9.95
1982  3.35  27.67  3.35
1983  1.5  27.73  1.5
1984  7.45  27.68  7.45
1985  9.3  27.76  9.3
1986  3.5  27.94  3.5
1987  2.65  28.23  2.65
1988  13.1  28.03  13.1
1989  16.45  27.95  16.45
1990  8.5  28.34  8.5
1991  3.45  27.60  3.45
1992  8.85  27.78  8.85
1993  3.5  27.82  3.5
1994  2.65  27.79  2.65
1995  24.8  28.32  24.8
1996  19.55  28.12  19.55
1997  4.15  28.16  4.15
1998  21.75  28.48  21.75
1999  21.85  28.36  21.85
2000  12.2  27.99  12.2
2001  11.25  28.38  11.25
2002  6.35  28.01  6.35
2003  22.6  28.62  22.6 
2004  30.2 NA 30.2
2005  30.4 NA 30.4
2006  7.9 NA  7.9