# date (year)	 area (km^2)
    2013.822	       0.000
    2013.904	       0.575
    2013.910	       0.216
    2013.929	       0.459
    2013.948	       0.743
    2013.953	       0.373
    2013.997	       0.323
    2014.016	       0.244
    2014.079	       0.659
    2014.104	       0.448
    2014.216	       0.211
    2014.255	       0.699
    2014.260	       0.038
    2014.674	       0.322
    2014.718	       0.275
    2014.737	       0.661
    2014.742	       0.232
    2014.893	       0.451
    2015.025	       0.470
    2015.044	       0.772
    2015.088	       0.897
    2015.093	       0.403
    2015.156	       0.719
    2015.682	       0.335
    2015.707	       0.353
    2015.882	       0.110
    2015.989	       0.218
    2016.033	       0.260
    2016.057	      -0.090
    2016.145	      -0.260
    2016.295	       0.052
    2016.645	       0.221
    2016.776	       0.562
    2016.863	       0.750
    2016.883	       0.906
    2016.932	       0.698
    2016.975	       0.345
    2016.995	       0.589
    2017.014	       0.887
    2017.038	       0.715
    2017.101	       0.367
    2017.258	       0.733
    2017.759	       0.443
    2017.803	       0.423
    2017.959	       0.482
    2018.090	      -0.024
    2018.159	      -0.112
    2018.197	       0.410
    2018.203	       0.007
    2018.660	      -0.073
    2018.704	       0.074
    2018.748	       0.386
    2018.767	       0.480
    2018.773	      -0.032
    2018.855	       0.337
    2018.967	      -0.088
    2019.030	       0.387
    2019.142	       0.133
    2019.186	       0.601
    2019.205	       0.321
    2019.230	       0.134
    2019.249	       0.659
    2019.293	       0.673
    2019.668	       1.439
    2019.781	       0.549
    2019.907	       1.000
    2019.975	       1.002
    2020.000	       0.511
    2020.044	       0.680
    2020.150	       0.304
    2020.169	       0.465
    2020.781	       0.178
    2020.787	      -0.174
    2020.918	      -0.213
    2020.956	       0.182
    2020.962	       0.011
    2021.025	       0.163
    2021.068	       0.019
    2021.219	       0.530
    2021.701	       0.283
    2021.707	      -0.181
    2021.789	       0.365
    2021.877	       0.518
    2021.890	       0.289
    2022.036	       0.054
    2022.099	       0.285
    2022.121	       0.295
    2022.164	       0.451
    2022.208	       0.373
    2022.233	       0.300
    2022.734	       0.372
    2022.737	       0.163
    2022.822	       0.397
    2022.929	       0.455
    2022.932	       0.250
    2022.934	       0.069
    2022.951	       0.431
    2023.060	       0.615
    2023.126	       0.449
    2023.148	       0.429
    2023.214	       0.440
    2023.236	       0.268
    2023.238	       0.220
