# date (year)	 area (km^2)
    2013.827	       0.000
    2013.890	       0.096
    2013.934	       0.163
    2014.047	       0.346
    2014.134	       0.015
    2014.285	       0.093
    2014.636	       0.772
    2014.641	       1.133
    2014.660	       0.882
    2014.704	       0.756
    2014.748	       1.053
    2014.811	       1.076
    2014.836	       1.177
    2014.855	       0.982
    2014.923	       1.137
    2015.099	       1.541
    2015.142	       1.544
    2015.205	       1.411
    2015.274	       2.188
    2015.293	       2.274
    2015.644	       2.541
    2015.649	       2.232
    2015.668	       2.451
    2015.688	       2.445
    2015.693	       2.402
    2015.712	       2.623
    2015.775	       2.814
    2015.800	       2.956
    2015.844	       3.104
    2015.863	       2.579
    2015.932	       3.114
    2015.995	       2.967
    2016.019	       3.119
    2016.213	       2.707
    2016.257	       2.094
    2016.301	       1.885
    2016.650	       1.620
    2016.675	       1.486
    2016.694	       1.582
    2016.762	       1.670
    2016.825	       1.547
    2016.937	       1.465
    2016.981	       0.965
    2017.000	       0.789
    2017.156	      -0.019
    2017.175	       0.074
    2017.288	       0.117
    2017.307	      -0.046
    2017.638	      -0.046
    2017.658	       0.052
    2017.701	       0.087
    2017.745	       0.280
    2017.789	       0.075
    2017.833	       0.168
    2017.858	       0.626
    2017.877	       0.188
    2017.921	       0.061
    2018.096	      -0.031
    2018.140	      -0.096
    2018.184	      -0.074
    2018.208	      -0.055
    2018.227	      -0.026
    2018.252	      -0.032
    2018.315	      -0.462
    2018.627	      -0.410
    2018.666	      -0.735
    2018.690	      -0.477
    2018.710	      -0.543
    2018.753	      -0.490
    2018.797	      -0.485
    2018.803	      -0.360
    2019.085	      -1.285
    2019.104	      -1.373
    2019.192	      -1.264
    2019.216	      -1.092
    2019.630	      -1.232
    2019.674	      -1.184
    2019.742	      -1.021
    2019.762	      -1.042
    2019.786	      -0.986
    2019.805	      -0.903
    2019.918	      -0.858
    2019.962	      -1.274
    2020.112	      -1.487
    2020.137	      -1.427
    2020.180	      -1.822
    2020.243	      -1.789
    2020.287	      -1.795
    2020.661	      -1.562
    2020.680	      -1.734
    2020.724	      -1.418
    2020.768	      -1.457
    2020.792	      -1.358
    2020.811	      -1.309
    2020.855	      -1.358
    2020.923	      -1.643
    2021.142	      -1.906
    2021.162	      -1.947
    2021.249	      -1.973
    2021.625	      -1.937
    2021.668	      -1.824
    2021.688	      -1.874
    2021.756	      -1.745
    2021.775	      -1.733
    2021.800	      -1.676
    2021.863	      -1.587
    2021.888	      -1.619
    2021.896	      -1.759
    2021.929	      -1.885
    2021.932	      -1.570
    2021.973	      -2.098
    2021.975	      -2.022
    2022.019	      -2.022
    2022.041	      -2.066
    2022.063	      -2.188
    2022.107	      -2.089
    2022.126	      -2.907
    2022.170	      -2.678
    2022.173	      -2.475
    2022.214	      -2.459
    2022.238	      -2.305
    2022.279	      -2.575
    2022.630	      -2.876
    2022.633	      -2.867
    2022.655	      -3.068
    2022.701	      -2.736
    2022.718	      -2.677
    2022.762	      -2.568
    2022.767	      -2.460
    2022.784	      -2.539
    2022.808	      -2.411
    2022.811	      -2.386
    2022.827	      -2.475
    2022.830	      -2.496
    2022.849	      -2.610
    2022.874	      -2.360
    2022.915	      -2.778
    2023.025	      -3.179
    2023.047	      -3.355
    2023.093	      -3.343
    2023.137	      -3.425
    2023.200	      -3.562
    2023.203	      -3.606
    2023.244	      -3.526
    2023.268	      -3.730
    2023.310	      -3.503
    2023.312	      -3.746
