** date ** baggeren ** storten ** zandwinning ** wrak ** totaal ** cumulatief == 01/01/1955 NaN NaN NaN NaN NaN 0.000000E+000 31/12/1955 -7.301864E+005 2.097618E+006 NaN NaN 1.367432E+006 1.367432E+006 31/12/1956 -9.477409E+005 1.658291E+006 -2.139955E+005 NaN 4.965545E+005 1.863986E+006 31/12/1957 -1.107132E+006 1.570205E+006 NaN NaN 4.630727E+005 2.327059E+006 31/12/1958 -7.849273E+005 1.579314E+006 NaN NaN 7.943864E+005 3.121445E+006 31/12/1959 -1.062895E+006 1.707350E+006 NaN NaN 6.444545E+005 3.765900E+006 31/12/1960 -7.204591E+005 1.551960E+006 NaN NaN 8.315009E+005 4.597401E+006 31/12/1961 -1.150897E+006 3.411377E+006 NaN NaN 2.260480E+006 6.857881E+006 31/12/1962 -1.959261E+006 2.635927E+006 -6.452382E+005 NaN 3.142818E+004 6.889309E+006 31/12/1963 -1.475861E+006 1.457858E+006 NaN NaN -1.800273E+004 6.871306E+006 31/12/1964 -2.143474E+006 2.580738E+006 NaN NaN 4.372645E+005 7.308571E+006 31/12/1965 -1.135624E+006 2.702384E+006 -5.332164E+005 NaN 1.033544E+006 8.342115E+006 31/12/1966 -4.605164E+005 1.995405E+006 NaN NaN 1.534888E+006 9.877003E+006 31/12/1967 -8.580618E+005 3.359020E+006 -8.108745E+005 NaN 1.690084E+006 1.156709E+007 31/12/1968 -8.185427E+005 2.631984E+006 -8.246727E+004 NaN 1.730974E+006 1.329806E+007 31/12/1969 -9.261182E+004 1.384550E+006 NaN NaN 1.291938E+006 1.459000E+007 31/12/1970 -1.696477E+006 2.809349E+006 NaN NaN 1.112872E+006 1.570287E+007 31/12/1971 -2.694421E+006 3.077581E+006 NaN NaN 3.831600E+005 1.608603E+007 31/12/1972 -1.732034E+006 1.732034E+006 NaN NaN 0.000000E+000 1.608603E+007 31/12/1973 -3.675453E+006 3.675453E+006 -5.246582E+005 NaN -5.246582E+005 1.556137E+007 31/12/1974 -3.545489E+006 4.721418E+006 -1.820009E+005 NaN 9.939282E+005 1.655530E+007 31/12/1975 -3.704129E+006 4.151639E+006 -4.265845E+005 NaN 2.092545E+004 1.657623E+007 31/12/1976 -4.744315E+006 4.584996E+006 -5.890000E+003 NaN -1.652088E+005 1.641102E+007 31/12/1977 -2.737697E+006 3.792749E+006 -1.806636E+004 NaN 1.036985E+006 1.744800E+007 31/12/1978 -3.550092E+006 4.216955E+006 -1.479655E+006 NaN -8.127909E+005 1.663521E+007 31/12/1979 -4.658479E+006 4.633495E+006 -6.020400E+005 NaN -6.270232E+005 1.600819E+007 31/12/1980 -4.663788E+006 4.354717E+006 -8.573609E+005 NaN -1.166431E+006 1.484176E+007 31/12/1981 -4.603065E+006 4.660151E+006 -1.758682E+005 NaN -1.187824E+005 1.472297E+007 31/12/1982 -3.581667E+006 7.530616E+006 -2.532891E+005 NaN 3.695660E+006 1.841863E+007 31/12/1983 -3.441826E+006 4.013475E+006 -1.082244E+006 NaN -5.105937E+005 1.790804E+007 31/12/1984 -3.303402E+006 5.288285E+006 -1.725478E+006 NaN 2.594048E+005 1.816745E+007 31/12/1985 -3.938531E+006 4.728459E+006 -3.897655E+005 NaN 4.001623E+005 1.856761E+007 31/12/1986 -3.018770E+006 6.127019E+006 -4.032527E+005 NaN 2.704997E+006 2.127260E+007 31/12/1987 -5.084123E+006 6.190565E+006 -5.014055E+005 NaN 6.050373E+005 2.187764E+007 31/12/1988 -5.052664E+006 6.034474E+006 -9.459709E+005 NaN 3.583945E+004 2.191348E+007 31/12/1989 -4.623352E+006 4.593772E+006 -1.350378E+006 NaN -1.379958E+006 2.053352E+007 31/12/1990 -2.810010E+006 3.414552E+006 -3.904709E+005 NaN 2.140705E+005 2.074759E+007 31/12/1991 -4.244364E+006 3.779088E+006 -4.871973E+005 NaN -9.524726E+005 1.979512E+007 31/12/1992 -3.881826E+006 3.847650E+006 -6.362127E+005 NaN -6.703886E+005 1.912473E+007 31/12/1993 -4.259686E+006 3.265205E+006 -9.471000E+005 NaN -1.941581E+006 1.718315E+007 31/12/1994 -3.730212E+006 4.096800E+006 -1.290963E+006 NaN -9.243755E+005 1.625878E+007 31/12/1995 -4.096363E+006 3.123779E+006 -1.133803E+006 NaN -2.106387E+006 1.415239E+007 31/12/1996 -4.395161E+006 3.241575E+006 -7.373002E+005 NaN -1.890886E+006 1.226150E+007 31/12/1997 -5.137805E+006 1.679849E+006 -1.070043E+006 NaN -4.527999E+006 7.733504E+006 31/12/1998 -5.722700E+006 7.656009E+005 -1.241781E+006 NaN -6.198881E+006 1.534624E+006 31/12/1999 -5.085297E+006 8.222018E+005 -1.511365E+006 NaN -5.774459E+006 -4.239835E+006 31/12/2000 -4.957771E+006 1.054765E+006 -1.309986E+006 NaN -5.212991E+006 -9.452827E+006 31/12/2001 -4.384697E+006 8.606918E+005 -1.016807E+006 NaN -4.540812E+006 -1.399364E+007 31/12/2002 -2.913558E+006 5.987900E+005 -1.039236E+006 NaN -3.354005E+006 -1.734764E+007 31/12/2003 -3.189167E+006 9.043564E+005 -1.164130E+006 NaN -3.448940E+006 -2.079658E+007 31/12/2004 -3.358212E+006 9.088909E+005 -1.228822E+006 NaN -3.678143E+006 -2.447473E+007 31/12/2005 -2.377644E+006 8.212909E+005 -1.096849E+006 NaN -2.653202E+006 -2.712793E+007 31/12/2006 -2.139916E+006 1.210260E+006 -9.188700E+005 NaN -1.848526E+006 -2.897645E+007 31/12/2007 -2.382199E+006 9.788928E+005 -1.017957E+006 NaN -2.421264E+006 -3.139772E+007 31/12/2008 -3.302416E+006 3.864736E+005 -1.079508E+006 NaN -3.995451E+006 -3.539317E+007