# date (year)	 area (km^2)
    2013.827	       0.000
    2013.890	       0.090
    2013.934	       0.178
    2014.047	       0.339
    2014.134	      -0.001
    2014.285	       0.093
    2014.310	       0.339
    2014.636	       0.759
    2014.641	       1.205
    2014.660	       0.867
    2014.704	       0.794
    2014.723	       0.974
    2014.748	       1.058
    2014.811	       1.073
    2014.836	       1.169
    2014.855	       0.982
    2014.923	       1.127
    2015.099	       1.556
    2015.142	       1.535
    2015.205	       1.471
    2015.274	       2.234
    2015.293	       2.289
    2015.644	       2.575
    2015.649	       2.267
    2015.668	       2.527
    2015.688	       2.489
    2015.693	       2.418
    2015.712	       2.639
    2015.775	       2.892
    2015.800	       2.995
    2015.844	       3.129
    2015.863	       2.711
    2015.932	       3.185
    2015.995	       3.006
    2016.019	       3.188
    2016.213	       2.681
    2016.257	       2.067
    2016.301	       1.852
    2016.650	       1.599
    2016.675	       1.467
    2016.694	       1.668
    2016.762	       1.642
    2016.825	       1.513
    2016.937	       1.418
    2016.981	       0.922
    2017.000	       0.749
    2017.156	      -0.049
    2017.175	       0.051
    2017.288	       0.103
    2017.307	      -0.064
    2017.638	      -0.055
    2017.658	       0.034
    2017.701	       0.079
    2017.726	      -0.010
    2017.745	       0.275
    2017.789	       0.072
    2017.833	       0.156
    2017.858	       0.626
    2017.877	       0.189
    2017.921	       0.033
    2018.096	      -0.056
    2018.140	      -0.128
    2018.184	      -0.098
    2018.208	      -0.085
    2018.227	      -0.049
    2018.252	      -0.070
    2018.315	      -0.490
    2018.627	      -0.389
    2018.666	      -0.727
    2018.690	      -0.491
    2018.710	      -0.546
    2018.753	      -0.488
    2018.797	      -0.482
    2018.803	      -0.366
    2018.929	      -0.473
    2019.041	      -1.056
    2019.085	      -1.305
    2019.104	      -1.377
    2019.192	      -1.294
    2019.216	      -1.114
    2019.630	      -1.242
    2019.674	      -1.182
    2019.742	      -1.028
    2019.762	      -1.045
    2019.786	      -0.988
    2019.805	      -0.912
    2019.918	      -0.860
    2019.962	      -1.278
    2020.112	      -1.514
    2020.137	      -1.452
    2020.180	      -1.844
    2020.243	      -1.815
    2020.287	      -1.807
    2020.311	      -2.001
    2020.661	      -1.560
    2020.680	      -1.668
    2020.705	      -1.476
    2020.724	      -1.420
    2020.768	      -1.449
    2020.792	      -1.361
    2020.811	      -1.318
    2020.855	      -1.364
    2020.923	      -1.649
    2021.142	      -1.928
    2021.162	      -1.973
    2021.249	      -1.996
    2021.625	      -1.938
    2021.668	      -1.825
    2021.688	      -1.871
    2021.712	      -1.775
    2021.756	      -1.727
    2021.775	      -1.740
    2021.800	      -1.675
    2021.863	      -1.554
    2021.888	      -1.604
    2021.896	      -1.737
    2021.929	      -1.897
    2021.932	      -1.478
    2021.934	      -1.742
    2021.973	      -2.116
    2021.975	      -2.045
    2022.019	      -2.047
    2022.041	      -2.092
    2022.063	      -2.206
    2022.107	      -2.111
    2022.126	      -2.173
    2022.170	      -2.671
    2022.173	      -2.479
    2022.214	      -2.478
    2022.238	      -2.324
    2022.279	      -2.597
    2022.282	      -2.392
    2022.630	      -2.862
    2022.633	      -2.843
    2022.655	      -2.954
    2022.701	      -2.702
    2022.718	      -2.667
    2022.762	      -2.569
    2022.767	      -2.451
    2022.784	      -2.539
    2022.808	      -2.415
    2022.811	      -2.386
    2022.827	      -2.468
    2022.830	      -2.475
    2022.849	      -2.606
    2022.874	      -2.364
    2022.915	      -2.796
    2022.918	      -3.143
    2023.025	      -3.172
    2023.047	      -3.361
    2023.093	      -3.350
    2023.137	      -3.438
    2023.200	      -3.576
    2023.203	      -3.601
    2023.244	      -3.530
    2023.268	      -3.723
    2023.310	      -3.371
    2023.312	      -3.755
