4 0     Example MK4b - Mann-Kendall test, input type 4
         1952      1070.89
         1953       357.52
         1954       295.19
         1955       744.41
         1956       736.13
         1957       539.64
         1958       771.53
         1959       303.81
         1960       378.89
         1961       429.81
         1962       940.23
         1963       348.65
         1964       426.99
         1965       499.53
         1966       272.62
         1967       807.46
         1968       496.16
         1969       112.74
         1970       411.82
         1971       473.78
         1972       494.03