# date (year)	 area (km^2)
    2013.822	       0.000
    2013.904	      -0.089
    2013.910	      -0.157
    2013.929	      -0.066
    2013.948	       0.012
    2013.953	       0.009
    2013.997	       0.177
    2014.016	      -0.414
    2014.079	      -0.252
    2014.104	      -0.087
    2014.216	      -0.225
    2014.255	      -0.332
    2014.260	      -0.325
    2014.674	       0.684
    2014.718	      -0.655
    2014.737	      -0.431
    2014.742	      -0.425
    2014.893	      -0.045
    2015.025	      -0.307
    2015.044	      -0.208
    2015.088	      -0.074
    2015.093	      -0.052
    2015.156	      -0.146
    2015.682	      -0.472
    2015.707	      -0.426
    2015.882	      -0.227
    2015.989	      -0.365
    2016.033	      -0.202
    2016.057	      -0.161
    2016.145	      -0.065
    2016.295	      -0.585
    2016.645	      -0.542
    2016.776	      -0.517
    2016.863	      -0.029
    2016.883	       0.033
    2016.932	       0.224
    2016.975	       0.441
    2016.995	       0.491
    2017.014	       0.593
    2017.038	       0.290
    2017.101	       0.061
    2017.258	      -0.464
    2017.759	      -0.090
    2017.803	       0.053
    2017.959	      -0.103
    2018.090	       0.115
    2018.159	       0.171
    2018.197	       0.417
    2018.203	       0.369
    2018.660	      -0.019
    2018.704	       0.081
    2018.748	      -0.004
    2018.767	       0.059
    2018.773	       0.069
    2018.855	       0.524
    2018.967	       0.461
    2019.030	       0.026
    2019.142	       0.517
    2019.186	       0.522
    2019.205	       0.720
    2019.230	       0.855
    2019.249	       0.630
    2019.293	       1.405
    2019.668	       0.875
    2019.781	       0.894
    2019.907	       0.554
    2019.975	       0.155
    2020.000	       0.125
    2020.044	       0.279
    2020.150	      -0.029
    2020.169	      -0.391
    2020.781	      -0.487
    2020.787	      -0.666
    2020.918	      -0.085
    2020.956	       0.086
    2020.962	      -0.158
    2021.025	      -0.454
    2021.068	      -0.345
    2021.219	      -0.060
    2021.701	      -0.206
    2021.707	      -0.210
    2021.789	      -0.205
    2021.877	      -0.030
    2021.890	       0.034
    2022.036	       0.331
    2022.099	       0.704
    2022.121	       0.352
    2022.164	       0.867
    2022.208	       0.222
    2022.233	       0.530
    2022.734	       0.185
    2022.737	       0.033
    2022.822	       0.049
    2022.929	      -0.046
    2022.932	      -0.050
    2022.934	      -0.031
    2022.951	       0.030
    2023.060	       0.389
    2023.126	       0.512
    2023.148	      -0.295
    2023.214	      -0.214
    2023.236	      -0.097
    2023.238	      -0.098
