# date (year)	 area (km^2)
    2013.822	       0.000
    2013.871	      -0.005
    2013.910	       0.102
    2013.934	      -0.122
    2013.953	       0.019
    2013.959	      -0.064
    2014.003	      -0.192
    2014.110	      -0.164
    2014.197	      -0.377
    2014.285	      -0.380
    2014.304	      -0.445
    2014.655	       0.209
    2014.660	       0.189
    2014.742	       0.149
    2014.786	      -0.015
    2014.811	      -0.034
    2014.830	      -0.097
    2014.874	      -0.067
    2014.986	      -0.185
    2015.005	      -0.233
    2015.049	      -0.112
    2015.268	      -0.229
    2015.312	      -0.276
    2015.663	       0.155
    2015.688	      -0.100
    2015.707	       0.132
    2015.800	       0.194
    2015.838	       0.348
    2015.863	       0.344
    2015.926	       0.282
    2015.995	       0.231
    2016.014	      -0.070
    2016.063	      -0.063
    2016.194	      -0.182
    2016.257	      -0.134
    2016.276	      -0.160
    2016.626	      -0.354
    2016.650	       0.001
    2016.669	      -0.071
    2016.762	      -0.026
    2016.850	       0.045
    2016.869	       0.092
    2016.981	       0.034
    2017.000	      -0.135
    2017.063	      -0.227
    2017.132	      -0.091
    2017.175	      -0.183
    2017.219	      -0.183
    2017.307	      -0.340
    2017.638	      -0.230
    2017.658	       0.265
    2017.701	       0.080
    2017.745	      -0.090
    2017.770	      -0.074
    2017.852	       0.059
    2017.896	      -0.118
    2017.921	      -0.090
    2018.115	      -0.316
    2018.208	      -0.245
    2018.252	      -0.483
    2018.315	      -0.407
    2018.773	      -0.156
    2018.797	      -0.069
    2018.816	       0.129
    2018.860	      -0.044
    2018.904	      -0.089
    2019.041	       0.283
    2019.085	       0.053
    2019.304	      -0.244
    2019.630	       0.207
    2019.655	      -0.123
    2019.674	      -0.081
    2019.718	       0.043
    2019.742	      -0.412
    2019.786	      -0.017
    2019.849	       0.068
    2019.868	       0.165
    2019.956	      -0.050
    2019.962	      -0.019
    2020.112	       0.135
    2020.156	      -0.313
    2020.180	      -0.059
    2020.287	      -0.411
    2020.311	      -0.294
    2020.724	       0.125
    2020.743	       0.223
    2020.792	      -0.204
    2020.831	       0.337
    2020.918	      -0.121
    2020.923	      -0.094
    2021.030	       0.029
    2021.225	      -0.787
    2021.625	      -0.199
    2021.688	      -0.543
    2021.888	       0.028
    2021.932	       0.118
    2021.953	       0.278
    2021.970	       0.142
    2021.992	      -0.033
    2022.016	      -0.033
    2022.019	       0.110
    2022.041	      -0.102
    2022.167	       0.053
    2022.211	       0.072
    2022.233	      -0.113
    2022.238	      -0.109
    2022.260	       0.125
    2022.279	      -0.201
    2022.301	      -0.250
    2022.633	      -0.085
    2022.652	       0.012
    2022.740	      -0.149
    2022.934	      -0.096
    2023.137	       0.041
    2023.200	      -0.026
    2023.203	      -0.281
