year,series,value
1966,mean,0
1967,mean,-1.579040583
1968,mean,-1.873744642
1969,mean,-1.401503151
1970,mean,-1.267471848
1971,mean,-1.610949504
1972,mean,-0.24941572
1973,mean,-0.142623636
1974,mean,-0.519694263
1975,mean,-2.134856665
1976,mean,-1.120042112
1977,mean,-2.95861098
1978,mean,-0.532178029
1979,mean,-3.227194115
1980,mean,-3.028129233
1981,mean,-2.332502327
1982,mean,-1.277427274
1983,mean,-3.224818548
1984,mean,-6.64391639
1985,mean,-4.492760744
1986,mean,-3.925807739
1987,mean,-3.203799088
1988,mean,-0.933167611
1989,mean,-3.069573738
1990,mean,-2.445587466
1991,mean,-1.9931374
1992,mean,-1.482068293
1993,mean,-2.966910847
1994,mean,-0.798692262
1995,mean,0.200723397
1996,mean,0.226086229
1997,mean,-0.016819724
1998,mean,0.229428931
1999,mean,-0.443487379
2000,mean,3.325741819
2001,mean,0.418153735
2002,mean,3.149560906
2003,mean,3.11159511
2004,mean,5.380689932
2005,mean,5.929712154
2006,mean,8.426469547
2007,mean,6.919288515
2008,mean,8.408169189
2009,mean,8.024554854
2010,mean,8.442923034
2011,mean,10.33092003
2012,mean,8.907929392
2013,mean,13.42922869
1966,lower_confidence,0
1967,lower_confidence,-3.195010033
1968,lower_confidence,-3.567969632
1969,lower_confidence,-3.175720992
1970,lower_confidence,-3.174633067
1971,lower_confidence,-3.957171016
1972,lower_confidence,-2.899050215
1973,lower_confidence,-2.508072569
1974,lower_confidence,-3.486607883
1975,lower_confidence,-5.222310482
1976,lower_confidence,-4.40857184
1977,lower_confidence,-6.429874809
1978,lower_confidence,-4.039009968
1979,lower_confidence,-7.193395482
1980,lower_confidence,-7.55466641
1981,lower_confidence,-6.550425326
1982,lower_confidence,-5.507605174
1983,lower_confidence,-8.089130923
1984,lower_confidence,-11.65548914
1985,lower_confidence,-9.453031033
1986,lower_confidence,-9.150046281
1987,lower_confidence,-8.422240201
1988,lower_confidence,-6.369342913
1989,lower_confidence,-8.744065376
1990,lower_confidence,-8.22336452
1991,lower_confidence,-8.094667696
1992,lower_confidence,-7.703202261
1993,lower_confidence,-9.148373646
1994,lower_confidence,-7.303142052
1995,lower_confidence,-6.451619474
1996,lower_confidence,-6.39800007
1997,lower_confidence,-7.026287933
1998,lower_confidence,-6.938852803
1999,lower_confidence,-7.74594084
2000,lower_confidence,-4.0566817
2001,lower_confidence,-7.022195684
2002,lower_confidence,-4.465641886
2003,lower_confidence,-4.410525816
2004,lower_confidence,-2.54740938
2005,lower_confidence,-2.069918615
2006,lower_confidence,0.166395652
2007,lower_confidence,-1.208319907
2008,lower_confidence,-0.037608304
2009,lower_confidence,-0.474761546
2010,lower_confidence,-0.384771932
2011,lower_confidence,1.437743335
2012,lower_confidence,-0.101517318
2013,lower_confidence,4.108117005
1966,upper_confidence,0
1967,upper_confidence,0.036928867
1968,upper_confidence,-0.179519653
1969,upper_confidence,0.37271469
1970,upper_confidence,0.639689371
1971,upper_confidence,0.735272008
1972,upper_confidence,2.400218774
1973,upper_confidence,2.222825297
1974,upper_confidence,2.447219356
1975,upper_confidence,0.952597152
1976,upper_confidence,2.168487616
1977,upper_confidence,0.512652848
1978,upper_confidence,2.974653911
1979,upper_confidence,0.739007251
1980,upper_confidence,1.498407943
1981,upper_confidence,1.885420672
1982,upper_confidence,2.952750625
1983,upper_confidence,1.639493827
1984,upper_confidence,-1.632343644
1985,upper_confidence,0.467509545
1986,upper_confidence,1.298430802
1987,upper_confidence,2.014642026
1988,upper_confidence,4.503007691
1989,upper_confidence,2.6049179
1990,upper_confidence,3.332189588
1991,upper_confidence,4.108392895
1992,upper_confidence,4.739065676
1993,upper_confidence,3.214551952
1994,upper_confidence,5.705757529
1995,upper_confidence,6.853066269
1996,upper_confidence,6.850172527
1997,upper_confidence,6.992648485
1998,upper_confidence,7.397710665
1999,upper_confidence,6.858966081
2000,upper_confidence,10.70816534
2001,upper_confidence,7.858503153
2002,upper_confidence,10.7647637
2003,upper_confidence,10.63371604
2004,upper_confidence,13.30878924
2005,upper_confidence,13.92934292
2006,upper_confidence,16.68654344
2007,upper_confidence,15.04689694
2008,upper_confidence,16.85394668
2009,upper_confidence,16.52387125
2010,upper_confidence,17.270618
2011,upper_confidence,19.22409672
2012,upper_confidence,17.9173761
2013,upper_confidence,22.75034037