# date (year)	 area (km^2)
    2013.841	       0.000
    2013.860	       0.463
    2013.904	       0.313
    2013.910	       0.339
    2013.929	       0.362
    2013.934	       0.486
    2013.948	       0.497
    2013.953	       0.788
    2013.978	       0.718
    2013.997	      -1.233
    2014.066	      -0.835
    2014.079	      -1.191
    2014.104	      -1.005
    2014.110	      -0.925
    2014.192	      -1.741
    2014.197	      -1.722
    2014.216	      -1.385
    2014.260	      -1.523
    2014.718	      -1.294
    2014.737	      -2.129
    2014.805	      -1.157
    2014.825	      -1.085
    2014.893	      -0.401
    2014.899	      -0.299
    2014.942	      -0.233
    2014.962	       0.214
    2014.986	      -0.059
    2015.005	       0.525
    2015.132	      -1.325
    2015.156	      -1.538
    2015.249	      -1.441
    2015.682	      -0.245
    2015.688	      -1.179
    2015.707	      -1.010
    2015.726	      -0.669
    2015.732	      -0.485
    2015.795	       0.274
    2015.858	      -0.158
    2015.863	      -0.377
    2015.877	       0.150
    2015.926	       0.236
    2015.945	      -0.319
    2015.989	      -0.042
    2016.033	       0.207
    2016.120	       0.981
    2016.126	       0.920
    2016.713	       4.450
    2016.781	       3.370
    2016.863	       5.183
    2016.913	       4.202
    2016.956	       4.889
    2016.975	       4.319
    2017.019	       1.606
    2017.132	       1.331
    2017.677	      -1.545
    2017.701	      -2.322
    2017.721	      -2.420
    2017.764	      -2.573
    2017.784	      -2.407
    2017.789	      -2.449
    2017.803	      -2.049
    2017.808	      -1.680
    2017.833	      -2.314
    2017.871	      -2.110
    2017.896	      -1.945
    2017.934	      -1.666
    2017.959	      -1.715
    2017.964	      -2.648
    2017.984	      -2.455
    2018.003	      -2.311
    2018.008	      -2.507
    2018.090	      -1.901
    2018.134	      -2.474
    2018.140	      -2.703
    2018.729	      -2.828
    2018.753	      -2.369
    2018.885	      -2.543
    2018.926	      -2.868
    2018.967	      -2.851
    2018.992	      -2.130
    2019.011	      -2.320
    2019.038	      -1.767
    2019.060	      -2.012
    2019.099	      -2.622
    2019.104	      -2.509
    2019.123	      -3.420
    2019.142	      -2.512
    2019.148	      -2.400
    2019.186	      -2.803
    2019.192	      -2.838
    2019.255	      -2.541
    2019.668	      -3.374
    2019.756	      -3.110
    2019.762	      -2.868
    2019.819	      -2.706
    2019.844	      -2.361
    2019.849	      -2.194
    2019.907	      -2.173
    2019.932	      -1.456
    2019.951	      -1.650
    2019.956	      -1.202
    2019.975	      -1.197
    2019.981	      -0.181
    2020.044	      -2.961
    2020.063	      -2.665
    2020.087	      -2.966
    2020.156	      -3.173
    2020.811	      -3.465
    2020.918	      -3.762
    2020.956	      -3.672
    2020.986	      -3.617
    2021.025	      -3.529
    2021.030	      -3.865
    2021.068	      -3.729
    2021.074	      -3.622
    2021.707	      -3.461
    2021.877	      -3.171
    2021.882	      -3.033
    2021.890	      -3.001
    2021.907	      -3.255
    2022.011	      -2.437
    2022.014	      -3.309
    2022.033	      -2.497
    2022.036	      -3.174
    2022.077	      -2.172
    2022.123	      -3.489
    2022.164	      -3.564
    2022.170	      -3.531
    2022.236	      -3.583
    2022.255	      -3.472
    2022.258	      -3.604
    2022.737	      -3.461
    2022.778	      -3.323
    2022.803	      -3.210
    2022.805	      -3.208
    2022.825	      -2.994
    2022.827	      -3.204
    2022.893	      -3.519
    2022.912	      -3.419
    2022.932	      -3.342
    2022.937	      -3.324
    2022.951	      -3.326
    2022.959	      -3.399
    2023.003	      -3.397
    2023.025	      -3.483
    2023.066	      -3.442
    2023.068	      -3.297
    2023.148	      -3.365
    2023.153	      -2.251
    2023.156	      -2.393
    2023.236	      -3.705
    2023.263	      -3.698
