# date (year)	 area (km^2)
    2013.822	       0.000
    2013.841	       0.424
    2013.885	       0.757
    2013.890	       0.047
    2013.910	       0.774
    2013.929	       1.021
    2013.934	       1.028
    2013.953	       1.215
    2014.110	      -0.850
    2014.192	      -0.422
    2014.197	      -0.323
    2014.236	       0.401
    2014.260	       0.312
    2014.718	       0.142
    2014.805	       1.047
    2014.893	       0.251
    2014.899	       0.838
    2014.962	      -0.280
    2014.986	       0.622
    2015.093	      -0.069
    2015.156	       0.076
    2015.181	       0.278
    2015.249	       0.324
    2015.688	       3.531
    2015.707	       2.506
    2015.795	       3.069
    2015.858	       2.753
    2015.926	       2.122
    2015.989	       2.640
    2016.033	       3.694
    2016.120	       3.812
    2016.126	       0.949
    2016.145	       0.471
    2016.844	       4.895
    2016.863	       5.710
    2016.932	       4.946
    2016.956	       4.963
    2017.082	       7.172
    2017.132	       6.856
    2017.170	       6.419
    2017.258	       5.011
    2017.701	       1.875
    2017.745	       1.472
    2017.784	       1.671
    2017.789	       1.306
    2017.808	       1.462
    2017.871	       2.557
    2017.896	       2.190
    2017.959	       3.235
    2017.964	       3.148
    2017.984	       3.271
    2018.003	       3.263
    2018.008	       1.815
    2018.090	       1.469
    2018.134	      -0.603
    2018.140	      -0.654
    2018.266	      -0.780
    2018.271	      -2.975
    2018.660	      -4.822
    2018.666	      -6.040
    2018.729	      -3.592
    2018.748	      -3.386
    2018.885	      -4.224
    2018.956	      -3.510
    2018.967	      -4.172
    2019.099	      -4.293
    2019.104	      -4.252
    2019.148	      -4.065
    2019.192	      -3.610
    2019.668	      -3.470
    2019.762	      -3.455
    2019.825	      -2.886
    2019.849	      -2.669
    2019.888	      -3.038
    2019.956	      -1.689
    2019.975	      -0.649
    2020.044	      -2.723
    2020.063	      -2.400
    2020.087	      -2.685
    2020.156	      -5.034
    2020.262	      -5.588
    2020.281	      -5.660
    2020.918	      -5.472
    2020.986	      -5.253
    2021.025	      -5.734
    2021.030	      -5.925
    2021.068	      -5.572
    2021.074	      -5.759
    2021.118	      -5.508
    2021.707	      -5.392
    2021.770	      -5.125
    2021.775	      -5.578
    2021.882	      -5.505
    2021.890	      -5.564
    2021.907	      -5.157
    2022.014	      -4.675
    2022.036	      -5.686
    2022.038	      -5.708
    2022.123	      -5.043
    2022.164	      -5.059
    2022.167	      -5.007
    2022.170	      -4.972
    2022.208	      -5.257
    2022.255	      -6.085
    2022.258	      -6.196
    2022.778	      -5.889
    2022.800	      -5.473
    2022.803	      -5.754
    2022.805	      -5.946
    2022.827	      -5.883
    2022.932	      -5.343
    2022.937	      -5.318
    2022.978	      -5.555
    2023.066	      -5.328
    2023.068	      -5.349
    2023.153	      -6.283
    2023.156	      -6.325
    2023.175	      -6.158
