# date (year)	 area (km^2)
    2013.827	       0.000
    2013.847	      -0.539
    2014.134	      -0.113
    2014.222	      -0.018
    2014.748	       0.264
    2014.811	       0.206
    2014.855	       1.134
    2014.923	       2.780
    2015.099	       3.032
    2015.205	       4.730
    2015.274	       3.100
    2015.293	       3.565
    2015.644	       2.103
    2015.712	       1.979
    2015.775	       2.619
    2015.800	       2.764
    2015.844	       2.762
    2015.863	       2.678
    2016.019	       3.058
    2016.213	       2.769
    2016.257	       2.813
    2016.650	       3.867
    2016.675	       3.907
    2016.762	       4.087
    2016.825	       4.246
    2016.937	       4.310
    2017.000	       4.172
    2017.175	       2.327
    2017.288	       2.646
    2017.307	       2.502
    2017.658	       3.010
    2017.701	       2.844
    2017.726	       2.818
    2017.745	       2.761
    2017.789	       2.805
    2017.833	       2.815
    2017.877	       3.108
    2017.921	       2.826
    2018.140	       2.754
    2018.184	       2.742
    2018.227	       2.828
    2018.296	       2.783
    2018.315	       2.707
    2018.710	       2.871
    2018.753	       2.731
    2018.797	       2.856
    2018.929	       2.615
    2019.192	       0.847
    2019.216	       0.729
    2019.630	       0.708
    2019.674	       0.803
    2019.742	       0.725
    2019.762	       0.696
    2019.786	       0.786
    2019.805	       0.919
    2019.918	       0.919
    2019.962	       0.613
    2020.112	       0.533
    2020.137	       0.592
    2020.180	       0.509
    2020.243	       0.447
    2020.287	       0.857
    2020.311	       0.498
    2020.661	       1.355
    2020.680	       0.856
    2020.724	       0.859
    2020.768	       1.034
    2020.792	       1.008
    2020.811	       1.012
    2020.855	       1.058
    2020.880	       1.108
    2020.923	       1.052
    2020.967	       1.066
    2021.118	       0.440
    2021.142	       0.465
    2021.162	       0.244
    2021.249	      -0.075
    2021.625	       0.590
    2021.668	       0.532
    2021.712	       0.269
    2021.800	      -0.093
    2021.888	      -0.216
    2021.896	      -0.049
    2021.929	      -0.022
    2021.932	      -0.584
    2021.973	      -0.215
    2021.975	      -0.091
    2022.019	      -0.220
    2022.041	      -0.178
    2022.063	      -0.643
    2022.082	      -0.928
    2022.107	      -0.874
    2022.173	      -0.974
    2022.216	      -1.260
    2022.279	      -0.699
    2022.762	      -0.866
    2022.808	      -0.672
    2022.827	      -0.736
    2022.830	      -0.728
    2022.915	      -0.953
    2023.025	      -1.103
    2023.047	      -1.080
    2023.093	      -1.053
    2023.137	      -1.065
    2023.200	      -1.229
    2023.203	      -1.133
    2023.244	      -1.193
    2023.247	      -1.109
