Year,Value,Gulf of America,SST,Apr,(°F)
1940,72.744
1941,71.731
1942,71.973
1943,73.536
1944,73.746
1945,74.6
1946,74.52
1947,73.902
1948,74.839
1949,74.509
1950,72.199
1951,71.662
1952,72.579
1953,73.567
1954,74.754
1955,73.807
1956,73.022
1957,73.757
1958,71.016
1959,72.476
1960,71.61
1961,71.605
1962,72.111
1963,74.308
1964,72.396
1965,74.239
1966,71.758
1967,74.435
1968,72.218
1969,71.837
1970,71.968
1971,72.243
1972,75.158
1973,71.256
1974,74.059
1975,73.684
1976,73.564
1977,73.22
1978,71.522
1979,72.684
1980,72.812
1981,73.399
1982,73.941
1983,70.265
1984,71.938
1985,73.717
1986,72.126
1987,71.038
1988,72.034
1989,73.901
1990,73.19
1991,75.035
1992,72.636
1993,71.36
1994,73.771
1995,73.911
1996,71.077
1997,72.78
1998,72.307
1999,74.411
2000,74.26
2001,73.784
2002,75.764
2003,72.612
2004,73.198
2005,72.914
2006,74.952
2007,73.768
2008,74.04
2009,72.905
2010,71.384
2011,75.221
2012,75.957
2013,73.145
2014,72.998
2015,76.217
2016,74.47
2017,74.968
2018,74.125
2019,73.701
2020,76.47
2021,74.185
2022,74.782
2023,75.604
2024,74.457
2025,75.525