# date (year)	 area (km^2)
    2013.822	       0.000
    2013.841	       0.366
    2013.885	       0.677
    2013.890	       0.058
    2013.910	       0.721
    2013.929	       1.085
    2013.934	       0.968
    2013.953	       1.132
    2013.978	       0.476
    2013.997	       1.290
    2014.104	      -0.838
    2014.110	      -0.958
    2014.192	      -0.479
    2014.197	      -0.390
    2014.236	       0.381
    2014.260	       0.258
    2014.718	       0.216
    2014.805	       0.991
    2014.893	       0.249
    2014.899	       0.776
    2014.942	       0.278
    2014.962	      -0.328
    2014.986	       0.816
    2015.005	       0.097
    2015.093	      -0.065
    2015.156	       0.029
    2015.181	       0.174
    2015.249	       0.314
    2015.682	       1.359
    2015.688	       3.591
    2015.707	       2.477
    2015.732	       2.066
    2015.795	       3.294
    2015.863	       1.073
    2015.926	       2.153
    2015.945	       3.982
    2015.989	       2.784
    2016.033	       4.075
    2016.120	       3.890
    2016.126	       0.906
    2016.145	       0.499
    2016.781	       3.529
    2016.844	       6.558
    2016.863	       5.898
    2016.869	       8.326
    2016.932	       5.035
    2016.956	       5.018
    2017.082	       7.106
    2017.132	       6.864
    2017.170	       6.635
    2017.258	       4.988
    2017.701	       1.831
    2017.745	       1.624
    2017.784	       1.670
    2017.789	       1.199
    2017.808	       1.374
    2017.871	       2.470
    2017.896	       2.186
    2017.959	       3.188
    2017.964	       3.053
    2017.984	       3.264
    2018.003	       4.523
    2018.008	       3.678
    2018.090	       2.033
    2018.134	      -1.224
    2018.140	      -0.389
    2018.266	      -1.190
    2018.271	      -2.272
    2018.660	      -5.362
    2018.666	      -6.038
    2018.729	      -4.473
    2018.748	      -4.895
    2018.753	      -4.333
    2018.885	      -4.926
    2018.956	      -3.270
    2018.967	      -4.457
    2018.973	      -4.900
    2019.099	      -5.038
    2019.104	      -4.757
    2019.148	      -3.835
    2019.192	      -3.677
    2019.668	      -3.216
    2019.762	      -3.114
    2019.825	      -2.997
    2019.849	      -3.002
    2019.888	      -2.408
    2019.956	      -2.803
    2019.975	      -2.926
    2019.981	      -2.910
    2020.044	      -2.849
    2020.063	      -2.804
    2020.087	      -2.860
    2020.156	      -4.078
    2020.219	      -4.928
    2020.262	      -5.645
    2020.281	      -5.864
    2020.918	      -6.073
    2020.986	      -5.242
    2021.025	      -6.160
    2021.030	      -5.856
    2021.068	      -5.918
    2021.074	      -6.270
    2021.118	      -5.945
    2021.707	      -5.302
    2021.770	      -6.067
    2021.775	      -5.950
    2021.882	      -5.635
    2021.890	      -5.961
    2021.907	      -5.941
    2021.995	      -6.088
    2022.014	      -5.365
    2022.036	      -6.125
    2022.038	      -6.228
    2022.060	      -6.208
    2022.123	      -5.481
    2022.164	      -5.717
    2022.167	      -5.419
    2022.170	      -5.445
    2022.208	      -5.452
    2022.255	      -6.228
    2022.258	      -6.258
    2022.737	      -6.151
    2022.778	      -6.123
    2022.800	      -5.189
    2022.803	      -5.918
    2022.805	      -6.011
    2022.827	      -5.955
    2022.932	      -5.532
    2022.937	      -5.513
    2022.978	      -5.504
    2023.003	      -4.890
    2023.066	      -5.440
    2023.068	      -5.375
    2023.153	      -6.422
    2023.156	      -6.442
    2023.175	      -6.281
