# date (year)	 area (km^2)
    2013.822	       0.000
    2013.904	       0.540
    2013.910	       0.089
    2013.929	       0.463
    2013.948	       0.860
    2013.953	       0.400
    2013.997	       0.569
    2014.016	      -0.124
    2014.079	       0.454
    2014.104	       0.329
    2014.216	      -0.116
    2014.255	       0.454
    2014.260	      -0.237
    2014.655	      -0.584
    2014.674	       0.418
    2014.718	      -0.267
    2014.737	       0.391
    2014.742	      -0.097
    2014.893	       0.492
    2015.025	       0.302
    2015.044	       0.732
    2015.088	       1.037
    2015.093	       0.561
    2015.156	       0.695
    2015.682	      -0.014
    2015.707	       0.010
    2015.882	      -0.124
    2015.989	      -0.100
    2016.033	       0.069
    2016.057	      -0.246
    2016.145	      -0.421
    2016.295	      -0.492
    2016.645	      -0.243
    2016.776	       0.234
    2016.863	       0.834
    2016.883	       1.095
    2016.932	       1.015
    2016.975	       0.903
    2016.995	       1.249
    2017.014	       1.680
    2017.038	       1.271
    2017.101	       0.689
    2017.170	       2.256
    2017.258	       0.272
    2017.759	       0.330
    2017.803	       0.512
    2017.959	       0.371
    2018.090	       0.007
    2018.159	      -0.027
    2018.197	       0.759
    2018.203	       0.159
    2018.660	      -0.130
    2018.704	       0.088
    2018.748	       0.344
    2018.767	       0.644
    2018.773	      -0.079
    2018.855	       0.807
    2018.967	       0.369
    2019.030	       0.362
    2019.142	       0.625
    2019.186	       0.984
    2019.205	       0.956
    2019.230	       0.903
    2019.249	       1.377
    2019.255	       2.066
    2019.293	       2.171
    2019.668	       2.400
    2019.781	       1.276
    2019.907	       1.647
    2019.956	       0.773
    2019.975	       1.265
    2020.000	       0.626
    2020.044	       0.895
    2020.126	       1.684
    2020.150	       0.224
    2020.169	       0.051
    2020.281	      -1.767
    2020.675	      -0.828
    2020.781	      -0.517
    2020.787	      -1.043
    2020.918	      -0.480
    2020.956	       0.147
    2020.962	      -0.263
    2021.025	      -0.450
    2021.068	      -0.467
    2021.219	       0.361
    2021.701	      -0.068
    2021.707	      -0.603
    2021.789	       0.359
    2021.877	       0.403
    2021.890	       0.193
    2021.964	       0.933
    2022.036	       0.213
    2022.099	       0.757
    2022.121	       0.835
    2022.164	       1.332
    2022.208	       0.583
    2022.233	       0.799
    2022.734	       0.467
    2022.737	       0.091
    2022.822	       0.363
    2022.929	       0.289
    2022.932	       0.061
    2022.934	      -0.190
    2022.951	      -0.004
    2023.060	       0.935
    2023.126	       0.885
    2023.148	      -0.001
    2023.214	       0.021
    2023.236	      -0.035
    2023.238	      -1.957
