Year
|
Area (km2)
|
Cumulative Area (km2)
|
Number of sites
|
Cumulative Number of Sites
|
1838
|
1.119004
|
1.119
|
2
|
2
|
1858
|
6.858713
|
7.978
|
1
|
3
|
1895
|
0.243
|
8.221
|
2
|
5
|
1899
|
3.094506
|
11.315
|
2
|
7
|
1900
|
8.24
|
19.555
|
1
|
8
|
1901
|
|
|
|
8
|
1902
|
|
|
|
8
|
1903
|
17.69
|
37.245
|
1
|
9
|
1904
|
|
|
|
9
|
1905
|
3.105
|
40.35
|
3
|
12
|
1907
|
0.258982
|
40.609
|
1
|
13
|
1908
|
0.213
|
40.822
|
1
|
14
|
1909
|
3662.152029
|
3702.974
|
10
|
24
|
1910
|
0.0133
|
3702.988
|
1
|
25
|
1911
|
0
|
3702.988
|
3
|
28
|
1912
|
8.238003
|
3711.226
|
2
|
30
|
1913
|
5.867921
|
3717.093
|
9
|
39
|
1914
|
170.3275
|
3887.421
|
7
|
46
|
1915
|
0.0021
|
3887.423
|
5
|
51
|
1916
|
0.058015
|
3887.481
|
5
|
56
|
1917
|
166.398396
|
4053.879
|
24
|
80
|
1918
|
0.940376
|
4054.82
|
17
|
97
|
1919
|
0.818556
|
4055.638
|
20
|
117
|
1920
|
263.989041
|
4319.627
|
23
|
140
|
1921
|
168.177457
|
4487.805
|
65
|
205
|
1922
|
753.570611
|
5241.376
|
24
|
229
|
1923
|
523.985935
|
5765.361
|
42
|
271
|
1924
|
842.2731
|
6607.635
|
33
|
304
|
1925
|
86.138384
|
6693.773
|
32
|
336
|
1926
|
42.569024
|
6736.342
|
31
|
367
|
1927
|
6.300151
|
6742.642
|
19
|
386
|
1928
|
248.848043
|
6991.49
|
36
|
422
|
1929
|
19.782946
|
7011.273
|
34
|
456
|
1930
|
162.179409
|
7173.453
|
59
|
515
|
1931
|
30.593055
|
7204.046
|
44
|
559
|
1932
|
207.880012
|
7411.926
|
59
|
618
|
1933
|
111.242807
|
7523.168
|
136
|
754
|
1934
|
368.976719
|
7892.145
|
54
|
808
|
1935
|
2011.358283
|
9903.503
|
76
|
884
|
1936
|
69.568899
|
9973.072
|
77
|
961
|
1937
|
487.418961
|
10460.491
|
194
|
1155
|
1938
|
1901.517992
|
12362.009
|
243
|
1398
|
1939
|
763.596937
|
13125.606
|
223
|
1621
|
1940
|
254.004667
|
13379.611
|
135
|
1756
|
1941
|
214.445626
|
13594.056
|
115
|
1871
|
1942
|
668.714796
|
14262.771
|
73
|
1944
|
1943
|
137.020595
|
14399.792
|
47
|
1991
|
1944
|
14.672344
|
14414.464
|
50
|
2041
|
1945
|
8.264467
|
14422.729
|
91
|
2132
|
1946
|
39.17225
|
14461.901
|
129
|
2261
|
1947
|
963.569752
|
15425.471
|
149
|
2410
|
1948
|
1348.378831
|
16773.849
|
168
|
2578
|
1949
|
1314.49048
|
18088.34
|
151
|
2729
|
1950
|
240.336948
|
18328.677
|
164
|
2893
|
1951
|
7147.623357
|
25476.3
|
194
|
3087
|
1952
|
2834.566537
|
28310.867
|
221
|
3308
|
1953
|
717.854936
|
29028.722
|
255
|
3563
|
1954
|
4320.275679
|
33348.997
|
310
|
3873
|
1955
|
2135.969794
|
35484.967
|
357
|
4230
|
1956
|
7007.074666
|
42492.042
|
299
|
4529
|
1957
|
2802.042704
|
45294.085
|
346
|
4875
|
1958
|
2172.196662
|
47466.281
|
318
|
5193
|
1959
|
4434.745364
|
51901.027
|
326
|
5519
|
1960
|
1847.195825
|
53748.222
|
303
|
5822
|
1961
|
3177.836947
|
56926.059
|
555
|
6377
|
1962
|
5470.43253
|
62396.492
|
381
|
6758
|
1963
|
9241.50253
|
71637.994
|
350
|
7108
|
1964
|
2571.401612
|
74209.396
|
383
|
7491
|
1965
|
3457.81067
|
77667.207
|
486
|
7977
|
1966
|
5033.320596
|
82700.527
|
353
|
8330
|
1967
|
6317.843823
|
89018.371
|
466
|
8796
|
1968
|
6848.320323
|
95866.691
|
570
|
9366
|
1969
|
5253.383441
|
101120.075
|
499
|
9865
|
1970
|
20931.07879
|
122051.154
|
496
|
10361
|
1971
|
6261.847869
|
128313.002
|
569
|
10930
|
1972
|
9718.260767
|
138031.262
|
611
|
11541
|
1973
|
12020.06893
|
150051.331
|
592
|
12133
|
1974
|
17995.1852
|
168046.516
|
761
|
12894
|
1975
|
10084.16331
|
178130.68
|
411
|
13305
|
1976
|
9074.313487
|
187204.993
|
665
|
13970
|
1977
|
13376.06772
|
200581.061
|
763
|
14733
|
1978
|
5956.643791
|
206537.705
|
642
|
15375
|
1979
|
16942.51242
|
223480.217
|
694
|
16069
|
1980
|
26042.63314
|
249522.85
|
888
|
16957
|
1981
|
20128.20492
|
269651.055
|
958
|
17915
|
1982
|
11286.35827
|
280937.414
|
1051
|
18966
|
1983
|
13438.78752
|
294376.201
|
1252
|
20218
|
1984
|
8888.064536
|
303264.266
|
1815
|
22033
|
1985
|
14253.44876
|
317517.714
|
1571
|
23604
|
1986
|
27302.07535
|
344819.79
|
1734
|
25338
|
1987
|
11689.5099
|
356509.3
|
1607
|
26945
|
1988
|
32474.68895
|
388983.989
|
1768
|
28713
|
1989
|
33109.36597
|
422093.355
|
1530
|
30243
|
1990
|
29110.48028
|
451203.835
|
2193
|
32436
|
1991
|
38503.42443
|
489707.259
|
1952
|
34388
|
1992
|
45165.83806
|
534873.097
|
2638
|
37026
|
1993
|
14878.15737
|
549751.255
|
1587
|
38613
|
1994
|
13786.00549
|
563537.26
|
2539
|
41152
|
1995
|
28225.98297
|
591763.243
|
1798
|
42950
|
1996
|
17148.31821
|
608911.561
|
2306
|
45256
|
1997
|
22601.58184
|
631513.143
|
1707
|
46963
|
1998
|
24382.10691
|
655895.25
|
1813
|
48776
|
1999
|
13582.85292
|
669478.103
|
2184
|
50960
|
2000
|
32095.00867
|
701573.112
|
3928
|
54888
|
2001
|
42640.59226
|
744213.704
|
5935
|
60823
|
2002
|
27176.31952
|
771390.023
|
3566
|
64389
|
2003
|
14734.0904
|
786124.114
|
2989
|
67378
|
2004
|
51400.78326
|
837524.897
|
3751
|
71129
|
2005
|
35566.07366
|
873090.971
|
3605
|
74734
|
2006
|
24189.129
|
897280.1
|
3002
|
77736
|
2007
|
24415.42623
|
921695.526
|
3210
|
80946
|
2008
|
27397.53752
|
949093.064
|
2647
|
83593
|
2009
|
25770.73029
|
974863.794
|
2237
|
85830
|
2010
|
19998.6073
|
994862.401
|
4850
|
90680
|
2011
|
128396.4779
|
1123258.879
|
1927
|
92607
|
2012
|
8643.598414
|
1131902.477
|
1472
|
94079
|
2013
|
14016.94401
|
1145919.421
|
2190
|
96269
|
2014
|
907.990681
|
1146827.412
|
177
|
96446
|