coefficient,year,probe type,median,stderr a,1967.5,Sippican T4/T6,6.687,0.049062 a,1968.5,Sippican T4/T6,6.6886,0.055442 a,1969.5,Sippican T4/T6,6.6903,0.061823 a,1970.5,Sippican T4/T6,6.6919,0.068203 a,1971.5,Sippican T4/T6,6.6935,0.074584 a,1972.5,Sippican T4/T6,6.6758,0.070793 a,1973.5,Sippican T4/T6,6.6582,0.067003 a,1974.5,Sippican T4/T6,6.6405,0.063212 a,1975.5,Sippican T4/T6,6.6195,0.072212 a,1976.5,Sippican T4/T6,6.5985,0.081211 a,1977.5,Sippican T4/T6,6.5775,0.090211 a,1978.5,Sippican T4/T6,6.592,0.085683 a,1979.5,Sippican T4/T6,6.6065,0.081156 a,1980.5,Sippican T4/T6,6.621,0.076629 a,1981.5,Sippican T4/T6,6.6355,0.072101 a,1982.5,Sippican T4/T6,6.65,0.067574 a,1983.5,Sippican T4/T6,6.666,0.068713 a,1984.5,Sippican T4/T6,6.682,0.069852 a,1985.5,Sippican T4/T6,6.698,0.070991 a,1986.5,Sippican T4/T6,6.714,0.07213 a,1987.5,Sippican T4/T6,6.7685,0.07143 a,1988.5,Sippican T4/T6,6.823,0.070731 a,1989.5,Sippican T4/T6,6.7535,0.076739 a,1990.5,Sippican T4/T6,6.684,0.082747 a,1991.5,Sippican T4/T6,6.716,0.059558 a,1992.5,Sippican T4/T6,6.748,0.036369 a,1993.5,Sippican T4/T6,6.7307,0.038196 a,1994.5,Sippican T4/T6,6.7134,0.040024 a,1995.5,Sippican T4/T6,6.6962,0.041851 a,1996.5,Sippican T4/T6,6.6789,0.043679 a,1997.5,Sippican T4/T6,6.6616,0.045507 a,1998.5,Sippican T4/T6,6.6443,0.047334 a,1999.5,Sippican T4/T6,6.6271,0.049162 a,2000.5,Sippican T4/T6,6.6098,0.05099 a,2001.5,Sippican T4/T6,6.5925,0.052817 a,2002.5,Sippican T4/T6,NaN,NaN a,2003.5,Sippican T4/T6,NaN,NaN a,2004.5,Sippican T4/T6,NaN,NaN a,2005.5,Sippican T4/T6,NaN,NaN a,2006.5,Sippican T4/T6,NaN,NaN a,2007.5,Sippican T4/T6,NaN,NaN a,2008.5,Sippican T4/T6,NaN,NaN a,2009.5,Sippican T4/T6,NaN,NaN a,2010.5,Sippican T4/T6,NaN,NaN a,1967.5,Sippican T7/DB,NaN,NaN a,1968.5,Sippican T7/DB,NaN,NaN a,1969.5,Sippican T7/DB,NaN,NaN a,1970.5,Sippican T7/DB,6.669,0.046292 a,1971.5,Sippican T7/DB,6.6516,0.050904 a,1972.5,Sippican T7/DB,6.6342,0.055515 a,1973.5,Sippican T7/DB,6.6168,0.060127 a,1974.5,Sippican T7/DB,6.5994,0.064739 a,1975.5,Sippican T7/DB,6.582,0.06935 a,1976.5,Sippican T7/DB,6.6263,0.067602 a,1977.5,Sippican T7/DB,6.6707,0.065854 a,1978.5,Sippican T7/DB,6.715,0.064106 a,1979.5,Sippican T7/DB,6.7245,0.066645 a,1980.5,Sippican T7/DB,6.734,0.069183 a,1981.5,Sippican T7/DB,6.7435,0.071721 a,1982.5,Sippican T7/DB,6.753,0.07426 a,1983.5,Sippican T7/DB,6.7371,0.066452 a,1984.5,Sippican T7/DB,6.7213,0.058643 a,1985.5,Sippican T7/DB,6.7054,0.050835 a,1986.5,Sippican T7/DB,6.6895,0.043027 a,1987.5,Sippican T7/DB,6.647,0.054865 a,1988.5,Sippican T7/DB,6.6045,0.066702 a,1989.5,Sippican T7/DB,6.648,0.050548 a,1990.5,Sippican T7/DB,6.6915,0.034393 a,1991.5,Sippican T7/DB,6.7032,0.033733 a,1992.5,Sippican T7/DB,6.715,0.033073 a,1993.5,Sippican T7/DB,6.7077,0.038347 a,1994.5,Sippican T7/DB,6.7003,0.043622 a,1995.5,Sippican T7/DB,6.693,0.048897 a,1996.5,Sippican T7/DB,6.6762,0.044248 a,1997.5,Sippican T7/DB,6.6593,0.039599 a,1998.5,Sippican T7/DB,6.6425,0.03495 a,1999.5,Sippican T7/DB,6.6437,0.031795 a,2000.5,Sippican T7/DB,6.645,0.02864 a,2001.5,Sippican T7/DB,6.627,0.027146 a,2002.5,Sippican T7/DB,6.609,0.025652 a,2003.5,Sippican T7/DB,6.5875,0.019513 a,2004.5,Sippican T7/DB,6.566,0.013374 a,2005.5,Sippican T7/DB,6.611,0.02445 a,2006.5,Sippican T7/DB,6.656,0.035527 a,2007.5,Sippican T7/DB,6.6235,0.028027 a,2008.5,Sippican T7/DB,6.591,0.020527 a,2009.5,Sippican T7/DB,6.63,0.027992 a,2010.5,Sippican T7/DB,6.669,0.035456 a,1967.5,TSK T6,NaN,NaN a,1968.5,TSK T6,NaN,NaN a,1969.5,TSK T6,NaN,NaN a,1970.5,TSK T6,NaN,NaN a,1971.5,TSK T6,NaN,NaN a,1972.5,TSK T6,NaN,NaN a,1973.5,TSK T6,NaN,NaN a,1974.5,TSK T6,6.5648,0.080984 a,1975.5,TSK T6,6.5854,0.064131 a,1976.5,TSK T6,6.606,0.047279 a,1977.5,TSK T6,6.6441,0.066441 a,1978.5,TSK T6,6.6822,0.085604 a,1979.5,TSK T6,6.6676,0.082942 a,1980.5,TSK T6,6.6529,0.08028 a,1981.5,TSK T6,6.6383,0.077618 a,1982.5,TSK T6,6.6236,0.074956 a,1983.5,TSK T6,6.609,0.072294 a,1984.5,TSK T6,6.5943,0.069632 a,1985.5,TSK T6,6.5797,0.066969 a,1986.5,TSK T6,6.565,0.064307 a,1987.5,TSK T6,NaN,NaN a,1988.5,TSK T6,NaN,NaN a,1989.5,TSK T6,NaN,NaN a,1990.5,TSK T6,NaN,NaN a,1991.5,TSK T6,NaN,NaN a,1992.5,TSK T6,NaN,NaN a,1993.5,TSK T6,NaN,NaN a,1994.5,TSK T6,NaN,NaN a,1995.5,TSK T6,NaN,NaN a,1996.5,TSK T6,NaN,NaN a,1997.5,TSK T6,NaN,NaN a,1998.5,TSK T6,NaN,NaN a,1999.5,TSK T6,NaN,NaN a,2000.5,TSK T6,NaN,NaN a,2001.5,TSK T6,NaN,NaN a,2002.5,TSK T6,NaN,NaN a,2003.5,TSK T6,NaN,NaN a,2004.5,TSK T6,NaN,NaN a,2005.5,TSK T6,NaN,NaN a,2006.5,TSK T6,NaN,NaN a,2007.5,TSK T6,NaN,NaN a,2008.5,TSK T6,NaN,NaN a,2009.5,TSK T6,NaN,NaN a,2010.5,TSK T6,NaN,NaN a,1967.5,TSK T7/DB,NaN,NaN a,1968.5,TSK T7/DB,NaN,NaN a,1969.5,TSK T7/DB,NaN,NaN a,1970.5,TSK T7/DB,NaN,NaN a,1971.5,TSK T7/DB,NaN,NaN a,1972.5,TSK T7/DB,NaN,NaN a,1973.5,TSK T7/DB,NaN,NaN a,1974.5,TSK T7/DB,NaN,NaN a,1975.5,TSK T7/DB,NaN,NaN a,1976.5,TSK T7/DB,NaN,NaN a,1977.5,TSK T7/DB,NaN,NaN a,1978.5,TSK T7/DB,NaN,NaN a,1979.5,TSK T7/DB,NaN,NaN a,1980.5,TSK T7/DB,NaN,NaN a,1981.5,TSK T7/DB,NaN,NaN a,1982.5,TSK T7/DB,NaN,NaN a,1983.5,TSK T7/DB,NaN,NaN a,1984.5,TSK T7/DB,NaN,NaN a,1985.5,TSK T7/DB,NaN,NaN a,1986.5,TSK T7/DB,NaN,NaN a,1987.5,TSK T7/DB,6.6375,0.06935 a,1988.5,TSK T7/DB,6.6415,0.070188 a,1989.5,TSK T7/DB,6.6456,0.071026 a,1990.5,TSK T7/DB,6.6496,0.071864 a,1991.5,TSK T7/DB,6.6537,0.072702 a,1992.5,TSK T7/DB,6.6577,0.07354 a,1993.5,TSK T7/DB,6.6617,0.074377 a,1994.5,TSK T7/DB,6.6658,0.075215 a,1995.5,TSK T7/DB,6.6698,0.076053 a,1996.5,TSK T7/DB,6.6738,0.076891 a,1997.5,TSK T7/DB,6.6779,0.077729 a,1998.5,TSK T7/DB,6.6819,0.078567 a,1999.5,TSK T7/DB,6.686,0.079405 a,2000.5,TSK T7/DB,6.69,0.080242 a,2001.5,TSK T7/DB,NaN,NaN a,2002.5,TSK T7/DB,NaN,NaN a,2003.5,TSK T7/DB,NaN,NaN a,2004.5,TSK T7/DB,NaN,NaN a,2005.5,TSK T7/DB,NaN,NaN a,2006.5,TSK T7/DB,NaN,NaN a,2007.5,TSK T7/DB,NaN,NaN a,2008.5,TSK T7/DB,NaN,NaN a,2009.5,TSK T7/DB,NaN,NaN a,2010.5,TSK T7/DB,NaN,NaN b,1967.5,TSK T6,NaN,NaN b,1968.5,TSK T6,NaN,NaN b,1969.5,TSK T6,NaN,NaN b,1970.5,TSK T6,NaN,NaN b,1971.5,TSK T6,NaN,NaN b,1972.5,TSK T6,NaN,NaN b,1973.5,TSK T6,NaN,NaN