# date (year)	 area (km^2)
    2013.822	       0.000
    2013.827	       0.426
    2013.847	      -0.389
    2014.085	       1.214
    2014.129	      -0.106
    2014.134	      -1.596
    2014.222	       0.548
    2014.260	       1.032
    2014.285	       0.807
    2014.304	       0.420
    2014.636	       2.062
    2014.660	       2.411
    2014.748	       2.724
    2014.811	       2.645
    2014.830	       3.311
    2014.855	       2.808
    2014.899	       3.106
    2014.923	       3.362
    2014.967	       3.059
    2015.005	       3.085
    2015.049	       3.417
    2015.074	       2.968
    2015.099	       3.778
    2015.162	       2.734
    2015.268	       3.936
    2015.293	       4.572
    2015.312	       4.297
    2015.644	       5.321
    2015.663	       5.143
    2015.712	       5.363
    2015.775	       5.271
    2015.800	       5.444
    2015.838	       5.452
    2015.844	       5.631
    2015.863	       5.467
    2015.882	       5.473
    2015.926	       5.240
    2015.932	       7.374
    2015.970	       6.307
    2016.014	       6.068
    2016.019	       6.235
    2016.057	       5.917
    2016.213	       6.642
    2016.232	       6.735
    2016.257	       6.607
    2016.301	       6.443
    2016.626	       8.459
    2016.650	       7.236
    2016.669	       7.508
    2016.675	       6.118
    2016.757	       7.835
    2016.762	       7.745
    2016.825	       8.022
    2016.844	       6.119
    2016.937	       5.402
    2016.981	       8.011
    2017.000	       7.597
    2017.088	       8.112
    2017.175	       4.877
    2017.238	       4.647
    2017.288	       2.075
    2017.307	       1.750
    2017.633	       0.667
    2017.658	       0.889
    2017.701	       1.017
    2017.721	       0.873
    2017.726	       1.107
    2017.745	       1.090
    2017.764	       0.991
    2017.770	       0.807
    2017.789	       1.008
    2017.852	       1.109
    2017.921	       1.550
    2018.159	       1.851
    2018.184	       2.349
    2018.252	       2.560
    2018.290	       3.164
    2018.753	       3.908
    2018.797	       4.195
    2018.816	       3.480
    2018.860	       3.232
    2018.904	       3.037
    2018.929	       5.133
    2019.041	       4.093
    2019.123	       2.008
    2019.192	      -1.527
    2019.216	      -1.344
    2019.299	      -1.206
    2019.304	      -1.129
    2019.674	      -0.203
    2019.693	      -0.264
    2019.742	       0.198
    2019.762	       0.236
    2019.781	       0.155
    2019.786	       0.337
    2019.912	       0.457
    2019.918	       0.659
    2019.962	       0.383
    2020.000	       0.514
    2020.005	       0.865
    2020.137	       0.265
    2020.180	       0.414
    2020.287	       0.397
    2020.311	       0.457
    2020.661	       1.058
    2020.699	       0.312
    2020.705	       1.062
    2020.724	       1.246
    2020.743	       1.179
    2020.749	       0.503
    2020.768	       1.344
    2020.792	       1.040
    2020.811	       1.041
    2020.831	       1.550
    2020.855	       1.769
    2020.923	       2.127
    2020.967	       1.778
    2021.093	       1.015
    2021.142	      -5.753
    2021.225	     -11.069
    2021.625	      -9.406
    2021.688	      -9.581
    2021.712	      -8.803
    2021.751	      -8.927
    2021.775	      -8.974
    2021.800	      -9.184
    2021.838	      -8.664
    2021.882	      -9.351
    2021.888	      -8.761
    2021.896	      -8.922
    2021.926	      -9.005
    2021.929	      -8.132
    2021.932	      -8.064
    2021.948	      -8.616
    2021.970	      -7.912
    2021.973	      -8.473
    2021.975	      -7.605
    2021.992	     -10.476
    2022.019	     -12.192
    2022.041	     -12.369
    2022.107	     -17.781
    2022.145	     -18.593
    2022.173	     -19.310
    2022.211	     -21.376
    2022.258	     -21.404
    2022.279	     -21.270
    2022.627	     -20.729
    2022.630	     -20.682
    2022.652	     -20.172
    2022.671	     -20.273
    2022.715	     -20.471
    2022.762	     -19.947
    2022.784	     -20.434
    2022.808	     -20.110
    2022.827	     -19.914
    2022.874	     -18.991
    2022.890	     -19.618
    2022.915	     -19.366
    2022.934	     -19.684
    2023.000	     -24.328
    2023.022	     -17.734
    2023.025	     -28.574
    2023.044	     -32.979
    2023.088	     -33.034
    2023.093	     -32.864
    2023.110	     -32.124
    2023.137	     -32.523
    2023.175	     -32.450
    2023.200	     -32.336
    2023.203	     -33.011
    2023.244	     -32.710
    2023.312	     -32.355
