Model Year
Data Year 2020 2010 2000 1990 1980 1970 1960
2020 2.233 2.411 2.396 5.030 2.334 17.678 35.959
2010 2.201 2.189 2.190 3.231 2.333 12.006 28.272
2000 2.191 2.188 2.189 2.361 2.357 7.875 21.516
1990 2.124 2.128 2.129 2.079 2.281 5.009 15.451
1980 2.034 2.059 2.052 2.012 2.001 2.625 9.375
1970 2.033 2.055 2.050 2.005 1.974 1.931 4.506
1960 1.759 1.763 1.762 1.753 1.749 1.741 1.654