# date (year)	 area (km^2)
    2013.822	       0.000
    2013.827	       0.194
    2013.847	       0.260
    2014.085	      -0.018
    2014.129	       0.289
    2014.134	      -1.117
    2014.222	       0.586
    2014.260	       0.633
    2014.285	       0.610
    2014.304	      -0.812
    2014.636	      -0.095
    2014.660	       2.050
    2014.748	       2.908
    2014.811	       2.636
    2014.830	       2.662
    2014.855	       3.193
    2014.899	       3.060
    2014.923	       2.748
    2014.967	       3.059
    2015.005	       3.054
    2015.049	       3.139
    2015.074	       2.849
    2015.099	       3.640
    2015.162	       2.778
    2015.268	       3.485
    2015.293	       3.593
    2015.312	       3.307
    2015.644	       3.925
    2015.663	       4.332
    2015.712	       5.083
    2015.775	       4.720
    2015.800	       5.576
    2015.838	       5.296
    2015.844	       4.670
    2015.863	       4.443
    2015.882	       5.306
    2016.014	       5.367
    2016.019	       6.258
    2016.213	       5.760
    2016.257	       6.408
    2016.669	       7.341
    2016.757	       7.882
    2016.762	       7.877
    2016.825	       8.395
    2017.088	       7.772
    2017.175	       4.664
    2017.238	       4.599
    2017.288	       1.750
    2017.307	       1.467
    2017.633	       0.818
    2017.658	       1.168
    2017.701	       1.294
    2017.721	       1.071
    2017.726	       1.249
    2017.745	       1.279
    2017.764	       1.285
    2017.770	       0.924
    2017.789	       1.178
    2017.852	       1.281
    2017.921	       1.548
    2018.159	       1.938
    2018.184	       2.310
    2018.252	       2.460
    2018.290	       2.061
    2018.753	       2.844
    2018.797	       3.454
    2018.816	       3.719
    2018.860	       3.987
    2018.904	       3.277
    2019.041	       4.163
    2019.123	       2.151
    2019.192	      -1.369
    2019.216	      -1.180
    2019.299	      -1.048
    2019.304	      -0.962
    2019.674	      -0.060
    2019.693	      -0.225
    2019.742	       0.346
    2019.762	       0.394
    2019.781	       0.285
    2019.786	       0.500
    2019.912	       0.576
    2019.918	       0.825
    2019.962	       0.532
    2020.000	       0.650
    2020.005	       0.861
    2020.137	       0.442
    2020.180	       0.592
    2020.287	       0.560
    2020.311	       0.619
    2020.661	       1.202
    2020.699	       0.467
    2020.705	       1.141
    2020.724	       1.353
    2020.743	       1.313
    2020.749	       0.640
    2020.768	       1.469
    2020.792	       1.164
    2020.811	       0.958
    2020.831	       1.656
    2020.855	       1.898
    2020.923	       2.258
    2020.967	       1.906
    2021.093	       1.175
    2021.142	      -5.572
    2021.162	      -6.300
    2021.225	     -10.908
    2021.625	      -9.271
    2021.688	      -9.471
    2021.712	      -8.697
    2021.751	      -8.778
    2021.775	      -8.848
    2021.800	      -9.261
    2021.838	      -8.661
    2021.882	      -9.231
    2021.888	      -8.826
    2021.896	      -8.792
    2021.926	      -8.868
    2021.929	      -8.685
    2021.932	      -8.532
    2021.948	      -8.503
    2021.970	      -8.489
    2021.973	      -8.344
    2021.975	      -7.586
    2021.992	     -10.338
    2022.019	     -12.194
    2022.041	     -12.206
    2022.107	     -17.623
    2022.145	     -18.443
    2022.173	     -19.156
    2022.211	     -21.253
    2022.258	     -21.275
    2022.279	     -21.205
    2022.627	     -20.616
    2022.630	     -20.555
    2022.652	     -20.081
    2022.671	     -20.225
    2022.715	     -20.421
    2022.762	     -19.865
    2022.784	     -20.340
    2022.808	     -20.046
    2022.827	     -19.827
    2022.874	     -18.922
    2022.890	     -19.525
    2022.915	     -19.474
    2022.934	     -19.574
    2023.000	     -24.237
    2023.025	     -28.489
    2023.044	     -32.934
    2023.088	     -33.019
    2023.093	     -32.810
    2023.110	     -32.125
    2023.137	     -32.489
    2023.175	     -32.445
    2023.200	     -32.318
    2023.203	     -32.980
    2023.244	     -32.706
    2023.312	     -32.376
