plain, southern basin, central plateau, northern basin Natural

1878 1.000000 1.000000 5.2689% 1878 0.949948 1.052689 2.6987% 1904 0.065027 15.378148 1.3740% 1902 0.500000 2.000000 -2.6744% 1888 1.000000 1.000000 2.0549% 1923 0.072372 13.817485 0.0000% 1922 0.246198 4.061776 -0.6823% 1927 0.095891 10.428514 6.5229% 1941 0.408274 2.449334 6.1527% 1940 0.738624 1.353868 2.3623% 1939 1.587441 0.629945 -1.5482% 1938 0.854268 1.170593 -1.5312% 1937 0.079009 12.656843 3.9669% 1936 0.187228 5.341090 0.0000% 1935 0.057749 17.316241 3.2811% 1934 1.648635 0.606562 8.9328% 1933 1.178953 0.848210 -2.6088% 1932 0.487267 2.052264 -11.5407% 1931 0.120705 8.284684 2.3623% 1939 0.089605 11.160140 -1.5482% 1938 0.102378 9.767724 -1.5312% 1937 1.746602 0.572540 3.9669% 1936 0.360014 2.777667 3.2811% 1934 1.452448 0.688493 8.9328% 1933 1.333343 0.749994 -2.6088% 1932 1.691132 0.591320 -11.5407% 1931 0.915483 1.092320 2.3623% 1939 0.869880 1.149584 -1.5482% 1938 0.583693 1.713229 -1.5312% 1937 1.770275 0.564884 3.9669% 1936 0.062462 16.009840 0.0000% 1935 0.212484 4.706239 0.0000% 1935 0.100003 9.999663 0.0000% 1935 0.049364 20.257562 3.2811% 1934 1.626590 0.614783 8.9328% 1933 1.317610 0.758950 -2.6088% 1932 0.942588 1.060909 -11.5407% 1931 0.477938 2.092320 2.3623% 1939 0.482889 2.070868 -1.5482% 1938 1.925412 0.519369 -1.5312% 1937 1.073782 0.931288 3.9669% 1936 0.055528 18.008900 0.0000% 1935 1.105274 0.904753 0.0000%

choirs