# date (year)	 area (km^2)
    2013.822	       0.000
    2013.885	      -0.344
    2013.904	      -0.259
    2013.910	      -0.228
    2013.929	      -0.172
    2013.953	      -0.069
    2013.997	      -0.191
    2014.016	      -0.117
    2014.079	       0.066
    2014.085	       0.078
    2014.104	       0.094
    2014.255	      -0.203
    2014.649	      -0.290
    2014.655	      -0.218
    2014.674	      -0.238
    2014.718	      -0.361
    2014.742	      -0.263
    2014.893	      -0.296
    2014.912	      -0.273
    2014.956	      -0.129
    2015.025	      -0.107
    2015.044	       0.074
    2015.088	       0.154
    2015.156	      -0.193
    2015.175	      -0.223
    2015.219	       0.695
    2015.638	      -0.444
    2015.701	       0.037
    2015.707	       0.594
    2015.882	      -0.193
    2015.989	       0.164
    2016.033	       0.066
    2016.145	       0.480
    2016.183	       0.583
    2016.295	       1.040
    2016.645	      -0.188
    2016.776	       0.196
    2016.844	       0.458
    2016.863	       0.521
    2016.883	       0.544
    2016.932	       0.656
    2016.995	       0.229
    2017.014	       0.255
    2017.101	      -0.417
    2017.189	      -0.107
    2017.258	       0.072
    2017.277	       0.170
    2017.301	       0.236
    2017.696	      -0.061
    2017.803	       0.446
    2017.847	       0.189
    2017.896	       0.091
    2017.959	       0.120
    2018.197	       0.737
    2018.636	       0.133
    2018.660	       0.166
    2018.748	       0.108
    2018.767	       0.201
    2018.773	       0.188
    2018.792	       0.258
    2018.855	       0.446
    2018.942	       0.739
    2018.967	       0.846
    2019.030	       1.024
    2019.142	       1.228
    2019.162	       1.153
    2019.249	       1.074
    2019.293	       1.474
    2019.299	       1.350
    2019.644	      -0.240
    2019.668	       0.185
    2019.844	       0.099
    2019.907	       0.239
    2019.912	       0.230
    2019.956	       0.228
    2019.975	       0.165
    2020.063	      -0.345
    2020.087	      -0.170
    2020.126	      -0.125
    2020.150	      -0.058
    2020.169	       0.019
    2020.257	      -0.204
    2020.306	      -0.283
    2020.675	       0.093
    2020.719	      -0.127
    2020.781	      -0.253
    2020.787	      -0.221
    2020.831	      -0.618
    2020.869	      -0.513
    2020.918	      -0.359
    2020.962	      -0.155
    2021.005	      -0.029
    2021.068	       0.186
    2021.088	      -0.417
    2021.093	      -0.419
    2021.200	      -0.397
    2021.219	      -0.362
    2021.682	      -0.171
    2021.701	      -0.459
    2021.707	      -0.432
    2021.751	      -0.243
    2021.789	      -0.297
    2021.890	      -0.191
    2021.964	      -0.616
    2022.036	      -0.241
    2022.099	      -0.022
    2022.123	       0.098
    2022.164	       0.084
    2022.208	      -0.278
    2022.734	       0.047
    2022.753	       0.067
    2022.778	       0.170
    2022.822	       0.206
    2022.932	       0.081
    2022.975	       0.516
    2023.126	       0.256
    2023.148	       0.216
    2023.170	       0.256
    2023.236	       0.484
    2023.238	       0.985
    2023.301	       0.681
