# date (year)	 area (km^2)
    2013.822	       0.000
    2013.827	      -0.047
    2013.847	      -0.183
    2014.260	       0.087
    2014.285	      -0.253
    2014.304	      -0.105
    2014.636	       0.090
    2014.660	       0.128
    2014.748	       0.070
    2014.786	       0.144
    2014.811	       0.271
    2014.830	       0.157
    2014.836	      -0.018
    2014.855	       0.176
    2014.899	       0.014
    2014.923	       0.145
    2014.967	       0.135
    2015.005	       0.149
    2015.049	      -0.168
    2015.055	      -0.041
    2015.074	       0.040
    2015.137	      -0.308
    2015.142	      -0.094
    2015.268	       0.087
    2015.293	       0.001
    2015.312	       0.095
    2015.644	       0.260
    2015.663	       0.065
    2015.707	      -0.136
    2015.775	       0.303
    2015.838	       0.373
    2015.844	       0.375
    2015.863	       0.158
    2015.882	       0.347
    2015.926	       0.044
    2016.014	       0.034
    2016.057	       0.015
    2016.213	      -0.118
    2016.257	      -0.029
    2016.301	       0.077
    2016.626	       0.316
    2016.650	       0.134
    2016.669	       0.062
    2016.675	       0.272
    2016.757	       0.036
    2016.762	       0.201
    2016.825	       0.081
    2016.844	      -0.187
    2016.937	      -0.079
    2017.000	      -0.071
    2017.019	      -0.106
    2017.088	      -0.148
    2017.175	      -0.093
    2017.238	      -0.194
    2017.288	      -0.119
    2017.307	      -0.136
    2017.633	      -0.092
    2017.658	       0.059
    2017.677	      -0.145
    2017.721	       0.067
    2017.745	      -0.023
    2017.764	      -0.046
    2017.770	      -0.098
    2017.789	      -0.306
    2017.852	      -0.048
    2017.877	       0.025
    2017.921	       0.012
    2017.945	      -0.054
    2018.096	      -0.023
    2018.159	      -0.093
    2018.184	      -0.068
    2018.208	       0.120
    2018.290	      -0.002
    2018.690	       0.031
    2018.753	       0.082
    2018.797	       0.103
    2018.860	       0.041
    2018.885	      -0.047
    2018.904	       0.073
    2019.041	      -0.213
    2019.104	      -0.186
    2019.123	      -0.201
    2019.299	      -0.030
    2019.674	       0.021
    2019.693	       0.004
    2019.742	       0.007
    2019.762	       0.044
    2019.781	       0.034
    2019.912	       0.045
    2019.962	       0.004
    2020.000	      -0.262
    2020.180	      -0.000
    2020.262	      -0.112
    2020.287	      -0.161
    2020.311	      -0.130
    2020.656	      -0.125
    2020.661	       0.100
    2020.699	      -0.021
    2020.724	       0.059
    2020.743	       0.083
    2020.749	       0.095
    2020.768	       0.086
    2020.831	       0.053
    2020.855	       0.057
    2020.899	       0.096
    2020.923	       0.027
    2021.093	      -0.010
    2021.099	      -0.010
    2021.142	      -0.056
    2021.162	      -0.085
    2021.249	      -0.269
    2021.625	      -0.217
    2021.663	      -0.217
    2021.688	      -0.403
    2021.751	      -0.120
    2021.775	      -0.264
    2021.888	      -0.134
    2021.896	      -0.151
    2021.926	      -0.185
    2021.929	      -0.118
    2021.948	       0.056
    2021.970	      -0.171
    2021.975	      -0.013
    2021.992	      -0.066
    2022.014	       0.037
    2022.107	      -0.104
    2022.126	      -0.101
    2022.145	      -0.332
    2022.170	      -0.213
    2022.211	      -0.223
    2022.255	      -0.415
    2022.258	      -0.132
    2022.279	      -0.071
    2022.627	      -0.069
    2022.633	      -0.068
    2022.652	      -0.280
    2022.762	       0.007
    2022.784	      -0.147
    2022.827	      -0.180
    2022.874	       0.062
    2022.915	      -0.071
    2022.934	      -0.094
    2022.937	      -0.217
    2022.956	      -0.209
    2022.978	      -0.222
    2023.000	      -0.198
    2023.025	      -0.221
    2023.044	      -0.261
    2023.047	      -0.406
    2023.088	      -0.356
    2023.093	      -0.349
    2023.137	      -0.200
    2023.175	      -0.226
    2023.197	      -0.198
    2023.200	      -0.120
    2023.203	      -0.153
    2023.241	      -0.241
    2023.247	      -0.235
    2023.263	      -0.180
    2023.312	      -0.159
