# date (year)	 area (km^2)
    2013.822	       0.000
    2013.860	       0.044
    2013.885	       0.001
    2013.904	      -0.067
    2013.910	      -0.086
    2013.929	      -0.077
    2013.997	       0.118
    2014.041	       0.219
    2014.079	       0.134
    2014.085	       0.320
    2014.216	       0.227
    2014.255	       0.199
    2014.649	       0.007
    2014.655	      -0.079
    2014.674	      -0.032
    2014.718	       0.241
    2014.737	       0.041
    2014.742	       0.056
    2014.893	       0.014
    2014.918	      -0.022
    2014.956	      -0.005
    2015.025	       0.010
    2015.044	      -0.055
    2015.156	       0.169
    2015.219	       0.334
    2015.244	       0.218
    2015.638	       0.016
    2015.701	      -0.044
    2015.707	       0.080
    2015.877	       0.050
    2015.882	       0.004
    2015.989	      -0.003
    2016.033	      -0.117
    2016.145	       0.184
    2016.251	       0.049
    2016.295	      -0.075
    2016.776	       0.106
    2016.844	      -0.117
    2016.863	      -0.171
    2016.883	      -0.260
    2016.932	      -0.068
    2016.995	      -0.118
    2017.014	      -0.076
    2017.082	       0.028
    2017.101	       0.001
    2017.189	       0.119
    2017.195	       0.056
    2017.258	      -0.033
    2017.784	       0.017
    2017.847	      -0.059
    2017.959	      -0.091
    2017.984	       0.048
    2018.159	       0.082
    2018.636	       0.080
    2018.660	       0.019
    2018.704	      -0.034
    2018.748	      -0.106
    2018.767	      -0.147
    2018.773	      -0.125
    2018.792	       0.073
    2018.942	      -0.124
    2018.967	      -0.287
    2019.030	      -0.182
    2019.142	      -0.045
    2019.162	       0.124
    2019.249	      -0.138
    2019.293	      -0.054
    2019.644	      -0.000
    2019.668	      -0.161
    2019.775	      -0.036
    2019.781	       0.032
    2019.907	      -0.101
    2019.995	      -0.037
    2020.000	      -0.060
    2020.044	       0.008
    2020.063	       0.030
    2020.107	      -0.065
    2020.126	       0.046
    2020.131	       0.084
    2020.150	      -0.001
    2020.169	       0.084
    2020.194	       0.058
    2020.306	       0.145
    2020.675	      -0.056
    2020.781	      -0.107
    2020.787	      -0.158
    2020.831	      -0.166
    2020.869	       0.060
    2020.918	      -0.007
    2020.962	      -0.107
    2021.049	      -0.060
    2021.068	       0.110
    2021.088	       0.039
    2021.093	       0.012
    2021.175	       0.101
    2021.181	       0.085
    2021.219	      -0.108
    2021.682	       0.029
    2021.707	      -0.087
    2021.751	      -0.069
    2021.814	      -0.149
    2021.890	      -0.138
    2022.099	      -0.036
    2022.123	      -0.202
    2022.164	      -0.204
    2022.167	      -0.232
    2022.208	      -0.165
    2022.233	      -0.074
    2022.255	       0.085
    2022.649	      -0.142
    2022.734	      -0.203
    2022.753	      -0.263
    2022.803	      -0.035
    2022.822	      -0.076
    2022.825	      -0.133
    2022.929	      -0.206
    2022.932	      -0.263
    2022.934	      -0.249
    2022.975	      -0.145
    2023.000	      -0.223
    2023.238	       0.033
    2023.279	       0.027
