# date (year)	 area (km^2)
    2013.841	       0.000
    2013.904	       0.126
    2013.923	       0.019
    2013.929	       0.090
    2014.016	      -0.011
    2014.079	       0.181
    2014.104	       0.176
    2014.236	       0.071
    2014.649	       0.527
    2014.712	       0.739
    2014.718	       0.514
    2014.737	       0.816
    2014.781	       0.465
    2014.825	       0.510
    2014.893	       0.500
    2014.932	       0.435
    2014.975	       0.455
    2015.044	       0.609
    2015.088	       0.700
    2015.682	       0.274
    2015.808	       0.543
    2015.945	       0.405
    2015.989	       0.220
    2016.033	       0.276
    2016.115	       0.497
    2016.290	       0.412
    2016.295	       0.294
    2016.776	       0.487
    2016.863	       0.588
    2016.902	       0.685
    2017.014	       0.776
    2017.121	       0.815
    2017.164	       1.139
    2017.170	       1.040
    2017.258	       0.559
    2017.277	       0.384
    2017.759	       0.250
    2017.784	       0.163
    2017.959	       0.189
    2018.003	       0.162
    2018.090	       0.413
    2018.129	       0.672
    2018.134	       0.576
    2018.197	       0.261
    2018.660	       0.299
    2018.742	       0.201
    2018.786	       0.284
    2018.855	       0.233
    2018.923	       0.163
    2018.981	       0.250
    2018.986	       0.196
    2019.005	       0.355
    2019.030	       0.375
    2019.186	       0.179
    2019.205	       0.396
    2019.249	      -0.133
    2019.293	       0.075
    2019.668	       0.389
    2019.707	       0.385
    2019.756	       0.349
    2019.907	       0.468
    2019.926	       0.567
    2019.975	       0.488
    2020.014	       0.861
    2020.101	       0.357
    2020.150	       0.268
    2020.189	       0.402
    2020.281	       0.144
    2020.669	       0.673
    2020.675	       0.416
    2020.713	       0.624
    2020.806	       0.026
    2020.825	       0.196
    2020.932	       0.363
    2020.956	       0.362
    2021.025	       0.305
    2021.063	       0.486
    2021.068	       0.362
    2021.151	       0.671
    2021.789	       0.140
    2021.877	       0.232
    2021.890	       0.192
    2022.005	       0.242
    2022.027	       0.011
    2022.074	       0.049
    2022.099	       0.108
    2022.115	       0.242
    2022.164	       0.293
    2022.208	       0.344
    2022.734	       0.300
    2022.822	       0.010
    2022.841	       0.161
    2022.926	       0.370
    2022.929	       0.267
    2022.932	       0.270
    2023.123	       0.328
    2023.148	       0.029
