** date ** baggeren ** storten ** zandwinning ** wrak ** totaal ** cumulatief == 01/01/1955 NaN NaN NaN NaN NaN 0.000000E+000 31/12/1955 NaN 1.742852E+006 NaN NaN 1.742852E+006 1.742852E+006 31/12/1956 NaN 1.275118E+006 -2.416143E+005 NaN 1.033504E+006 2.776356E+006 31/12/1957 NaN 2.007625E+006 -5.535899E+004 NaN 1.952266E+006 4.728622E+006 31/12/1958 NaN 2.110029E+006 -1.157078E+005 NaN 1.994321E+006 6.722943E+006 31/12/1959 NaN 2.157024E+006 -2.125295E+005 NaN 1.944495E+006 8.667438E+006 31/12/1960 NaN 2.232418E+006 -2.791684E+005 NaN 1.953250E+006 1.062069E+007 31/12/1961 -1.314655E+005 1.872959E+006 -7.417764E+005 NaN 9.997171E+005 1.162040E+007 31/12/1962 NaN 3.007543E+006 -9.922768E+005 NaN 2.015266E+006 1.363567E+007 31/12/1963 NaN 1.457858E+006 -5.799336E+005 NaN 8.779245E+005 1.451360E+007 31/12/1964 NaN 2.143474E+006 -2.858976E+005 NaN 1.857576E+006 1.637117E+007 31/12/1965 NaN 1.260831E+006 -6.943992E+004 NaN 1.191391E+006 1.756256E+007 31/12/1966 NaN 8.568520E+005 -7.202498E+005 NaN 1.366023E+005 1.769916E+007 31/12/1967 NaN 1.765370E+006 -1.490589E+006 NaN 2.747802E+005 1.797395E+007 31/12/1968 NaN 1.252805E+006 -8.511609E+005 NaN 4.016438E+005 1.837559E+007 31/12/1969 -1.308636E+004 3.234712E+006 -1.523408E+006 NaN 1.698217E+006 2.007381E+007 31/12/1970 -3.778850E+003 3.052804E+006 -9.794700E+005 NaN 2.069555E+006 2.214336E+007 31/12/1971 -8.261254E+003 4.447722E+006 -1.409061E+006 NaN 3.030400E+006 2.517376E+007 31/12/1972 -1.141410E+004 4.324054E+006 -3.349347E+005 NaN 3.977705E+006 2.915147E+007 31/12/1973 -4.607433E+002 5.386937E+006 -1.081648E+006 NaN 4.304829E+006 3.345630E+007 31/12/1974 -1.288650E+004 6.751091E+006 -2.976970E+005 NaN 6.440507E+006 3.989680E+007 31/12/1975 -8.125890E+005 6.627069E+006 -6.734099E+005 NaN 5.141070E+006 4.503787E+007 31/12/1976 -7.615923E+002 6.449446E+006 -1.400076E+006 NaN 5.048609E+006 5.008648E+007 31/12/1977 -1.070960E+005 4.049423E+006 -1.241422E+006 NaN 2.700905E+006 5.278739E+007 31/12/1978 -2.846285E+005 6.225523E+006 -1.467776E+006 NaN 4.473118E+006 5.726050E+007 31/12/1979 -2.026617E+005 6.297112E+006 -4.064341E+005 NaN 5.688016E+006 6.294852E+007 31/12/1980 -2.918422E+005 4.790184E+006 -7.986328E+005 NaN 3.699709E+006 6.664823E+007 31/12/1981 NaN 3.210261E+006 -3.049812E+005 NaN 2.905280E+006 6.955351E+007 31/12/1982 -2.821204E+006 4.728769E+006 -2.710089E+005 NaN 1.636556E+006 7.119007E+007 31/12/1983 -3.173413E+005 4.137365E+006 -1.719404E+006 NaN 2.100620E+006 7.329069E+007 31/12/1984 NaN 3.953257E+006 -2.228133E+006 NaN 1.725124E+006 7.501581E+007 31/12/1985 -3.633702E+005 5.238439E+006 -1.713173E+006 NaN 3.161896E+006 7.817771E+007 31/12/1986 -3.565000E+005 3.779572E+006 -2.012987E+006 NaN 1.410086E+006 7.958779E+007 31/12/1987 -1.311080E+005 4.562038E+006 -5.484989E+005 NaN 3.882431E+006 8.347022E+007 31/12/1988 NaN 5.678919E+006 -8.949742E+005 NaN 4.783945E+006 8.825417E+007 31/12/1989 NaN 4.268545E+006 -1.953350E+006 NaN 2.315195E+006 9.056936E+007 31/12/1990 -5.433349E+005 3.685015E+006 -6.768646E+005 NaN 2.464815E+006 9.303418E+007 31/12/1991 -4.413496E+005 4.426365E+006 -7.551058E+005 NaN 3.229909E+006 9.626409E+007 31/12/1992 -2.706906E+005 4.213798E+006 -9.406627E+005 NaN 3.002444E+006 9.926653E+007 31/12/1993 -3.048392E+005 2.963876E+006 -1.211712E+006 NaN 1.447325E+006 1.007139E+008 31/12/1994 -9.904363E+005 4.452448E+006 -1.081166E+006 NaN 2.380846E+006 1.030947E+008 31/12/1995 -1.587076E+006 5.416791E+006 -8.408509E+005 NaN 2.988864E+006 1.060836E+008 31/12/1996 -1.108308E+006 6.162188E+006 -5.645169E+005 NaN 4.489363E+006 1.105729E+008 31/12/1997 -3.381283E+005 7.069071E+006 -6.750263E+005 NaN 6.055916E+006 1.166288E+008 31/12/1998 -1.795354E+006 1.071296E+007 -9.944370E+005 NaN 7.923171E+006 1.245520E+008 31/12/1999 -2.773274E+006 9.141807E+006 -1.531519E+006 2.275164E+005 5.064530E+006 1.296165E+008 31/12/2000 -1.101226E+006 5.913142E+006 -1.747732E+006 NaN 3.064183E+006 1.326807E+008 31/12/2001 -1.506948E+006 6.254066E+006 -1.130343E+006 NaN 3.616776E+006 1.362975E+008 31/12/2002 -1.028287E+006 5.065656E+006 -7.112290E+005 NaN 3.326140E+006 1.396236E+008 31/12/2003 -9.288177E+005 6.100016E+006 -7.220169E+005 2.026436E+005 4.651825E+006 1.442755E+008 31/12/2004 -5.024271E+005 5.594977E+006 -8.682245E+005 NaN 4.224326E+006 1.484998E+008 31/12/2005 -9.463491E+005 4.886409E+006 -8.602882E+005 NaN 3.079772E+006 1.515796E+008 31/12/2006 -2.142855E+005 3.677557E+006 -8.725900E+005 NaN 2.590682E+006 1.541702E+008 31/12/2007 -7.403936E+005 4.206550E+006 -7.912018E+005 NaN 2.674954E+006 1.568452E+008 31/12/2008 -6.261182E+004 2.452947E+006 -9.380745E+005 NaN 1.452261E+006 1.582975E+008