** date ** baggeren ** storten ** zandwinning ** wrak ** totaal ** cumulatief == 01/01/1955 NaN NaN NaN NaN NaN 0.000000E+000 31/12/1955 -3.694050E+006 2.101258E+006 NaN NaN -1.592792E+006 -1.592792E+006 31/12/1956 -3.341805E+006 2.116377E+006 -6.548696E+004 NaN -1.290914E+006 -2.883707E+006 31/12/1957 -3.140864E+006 1.093825E+006 -7.625011E+004 NaN -2.123289E+006 -5.006996E+006 31/12/1958 -3.487264E+006 1.332834E+006 -6.021839E+004 NaN -2.214648E+006 -7.221643E+006 31/12/1959 -3.427895E+006 1.132326E+006 -7.732654E+004 NaN -2.372896E+006 -9.594539E+006 31/12/1960 -3.699045E+006 1.447084E+006 -4.065073E+005 NaN -2.658468E+006 -1.225301E+007 31/12/1961 -4.071800E+006 2.207851E+006 -5.026613E+005 NaN -2.366610E+006 -1.461962E+007 31/12/1962 -4.831310E+006 1.757951E+006 -2.434024E+005 NaN -3.316761E+006 -1.793638E+007 31/12/1963 -4.551149E+006 3.066134E+006 -6.103274E+004 NaN -1.546048E+006 -1.948243E+007 31/12/1964 -5.025875E+006 2.881795E+006 -4.864019E+005 NaN -2.630482E+006 -2.211291E+007 31/12/1965 -3.586616E+006 2.347013E+006 -2.008740E+006 NaN -3.248343E+006 -2.536125E+007 31/12/1966 -2.820372E+006 1.619239E+006 -2.572001E+006 NaN -3.773133E+006 -2.913439E+007 31/12/1967 -4.288316E+006 2.521816E+006 -1.728054E+006 NaN -3.494554E+006 -3.262894E+007 31/12/1968 -3.067993E+006 1.815188E+006 -1.293801E+005 NaN -1.382185E+006 -3.401112E+007 31/12/1969 -5.055562E+006 1.435273E+006 -3.125799E+006 NaN -6.746088E+006 -4.075721E+007 31/12/1970 -4.701740E+006 1.168642E+006 -1.262512E+006 NaN -4.795610E+006 -4.555282E+007 31/12/1971 -6.166468E+006 4.028306E+005 -2.559805E+005 NaN -6.019618E+006 -5.157244E+007 31/12/1972 -6.499000E+006 7.313449E+005 -1.789255E+006 NaN -7.556909E+006 -5.912935E+007 31/12/1973 -7.730597E+006 9.932466E+005 -2.389492E+006 NaN -9.126842E+006 -6.825619E+007 31/12/1974 -1.013723E+007 1.584116E+006 -2.160462E+006 NaN -1.071358E+007 -7.896977E+007 31/12/1975 -1.138546E+007 2.947021E+006 -1.513789E+006 NaN -9.952233E+006 -8.892200E+007 31/12/1976 -1.277690E+007 3.245122E+006 -1.491839E+006 NaN -1.102362E+007 -9.994562E+007 31/12/1977 -8.582139E+006 3.720066E+006 -2.244435E+006 NaN -7.106508E+006 -1.070521E+008 31/12/1978 -1.050420E+007 4.335606E+006 -1.608783E+006 NaN -7.777374E+006 -1.148295E+008 31/12/1979 -1.087206E+007 4.002537E+006 -1.384440E+006 NaN -8.253966E+006 -1.230835E+008 31/12/1980 -9.977355E+006 4.904084E+006 -1.656997E+006 NaN -6.730267E+006 -1.298137E+008 31/12/1981 -9.845216E+006 6.354707E+006 -8.825228E+005 NaN -4.373032E+006 -1.341868E+008 31/12/1982 -8.154428E+006 6.334735E+006 -1.048410E+006 NaN -2.868103E+006 -1.370549E+008 31/12/1983 -6.673950E+006 3.611351E+006 -1.934810E+006 NaN -4.997409E+006 -1.420523E+008 31/12/1984 -7.880176E+006 4.194360E+006 -1.161867E+006 NaN -4.847683E+006 -1.469000E+008 31/12/1985 -9.077532E+006 4.491008E+006 -1.178927E+006 NaN -5.765451E+006 -1.526654E+008 31/12/1986 -9.363343E+006 6.841137E+006 -1.302669E+006 NaN -3.824876E+006 -1.564903E+008 31/12/1987 -1.061822E+007 5.817868E+006 -1.277749E+006 NaN -6.078101E+006 -1.625684E+008 31/12/1988 -1.015597E+007 3.977109E+006 -1.227258E+006 NaN -7.406118E+006 -1.699745E+008 31/12/1989 -9.083475E+006 3.731144E+006 -1.025284E+006 NaN -6.377615E+006 -1.763521E+008 31/12/1990 -5.951577E+006 2.863437E+006 -7.698120E+005 NaN -3.857952E+006 -1.802101E+008 31/12/1991 -7.681259E+006 3.612173E+006 -7.577805E+005 NaN -4.826867E+006 -1.850369E+008 31/12/1992 -6.689861E+006 2.745298E+006 -7.637066E+005 NaN -4.708270E+006 -1.897452E+008 31/12/1993 -7.214811E+006 3.724090E+006 -7.238237E+005 NaN -4.214545E+006 -1.939598E+008 31/12/1994 -7.338925E+006 3.812386E+006 -8.205644E+005 NaN -4.347103E+006 -1.983069E+008 31/12/1995 -7.293656E+006 3.485969E+006 -6.591389E+005 NaN -4.466826E+006 -2.027737E+008 31/12/1996 -7.842001E+006 2.726761E+006 -5.272295E+005 NaN -5.642469E+006 -2.084162E+008 31/12/1997 -9.855810E+006 2.844908E+006 -7.438103E+005 NaN -7.754713E+006 -2.161709E+008 31/12/1998 -1.096871E+007 2.238843E+006 -9.146386E+005 NaN -9.644508E+006 -2.258154E+008 31/12/1999 -9.430097E+006 2.005490E+006 -1.009089E+006 -2.275164E+005 -8.661212E+006 -2.344766E+008 31/12/2000 -8.452495E+006 3.660428E+006 -8.542341E+005 0.000000E+000 -5.646301E+006 -2.401229E+008 31/12/2001 -8.200234E+006 3.554310E+006 -7.939874E+005 NaN -5.439912E+006 -2.455628E+008 31/12/2002 -6.246815E+006 2.232622E+006 -8.118904E+005 NaN -4.826083E+006 -2.503889E+008 31/12/2003 -5.576369E+006 4.168283E+005 -8.942806E+005 -2.026436E+005 -6.256465E+006 -2.566453E+008 31/12/2004 -6.396665E+006 6.163795E+005 -8.277866E+005 NaN -6.608072E+006 -2.632534E+008 31/12/2005 -5.211992E+006 9.927191E+005 -6.525536E+005 NaN -4.871826E+006 -2.681252E+008 31/12/2006 -5.470561E+006 1.737545E+006 -5.693536E+005 NaN -4.302369E+006 -2.724276E+008 31/12/2007 -4.668544E+006 1.077929E+006 -6.301936E+005 NaN -4.220809E+006 -2.766484E+008 31/12/2008 -6.421555E+006 3.498062E+006 -6.812645E+005 NaN -3.604758E+006 -2.802532E+008