# date (year)	 area (km^2)
    2013.827	       0.000
    2013.890	      -0.010
    2013.934	       0.054
    2014.047	       0.077
    2014.134	      -0.016
    2014.285	       0.052
    2014.636	       0.160
    2014.641	       0.101
    2014.660	       0.192
    2014.704	       0.150
    2014.748	       0.111
    2014.811	       0.047
    2014.836	       0.032
    2014.855	       0.156
    2014.923	       0.060
    2015.099	       0.084
    2015.142	       0.028
    2015.205	       0.050
    2015.274	       0.061
    2015.293	       0.127
    2015.644	       0.227
    2015.649	       0.201
    2015.668	       0.093
    2015.688	      -0.015
    2015.693	       0.241
    2015.712	       0.127
    2015.775	       0.253
    2015.800	       0.135
    2015.844	       0.135
    2015.863	       0.132
    2015.932	       0.077
    2015.995	       0.105
    2016.019	       0.138
    2016.213	       0.080
    2016.257	       0.080
    2016.301	       0.103
    2016.650	       0.070
    2016.675	       0.103
    2016.694	       0.099
    2016.762	       0.089
    2016.825	       0.103
    2016.937	       0.100
    2016.981	       0.092
    2017.000	       0.110
    2017.156	       0.035
    2017.175	       0.049
    2017.288	       0.048
    2017.307	       0.022
    2017.638	      -0.053
    2017.658	       0.079
    2017.701	       0.046
    2017.745	      -0.048
    2017.789	      -0.056
    2017.833	      -0.047
    2017.858	      -0.020
    2017.877	      -0.098
    2017.921	      -0.005
    2018.096	      -0.016
    2018.140	      -0.039
    2018.184	      -0.003
    2018.208	      -0.001
    2018.227	      -0.002
    2018.252	       0.054
    2018.315	       0.020
    2018.627	       0.074
    2018.666	       0.014
    2018.690	       0.011
    2018.710	      -0.077
    2018.753	      -0.045
    2018.797	       0.008
    2018.803	       0.027
    2019.085	      -0.036
    2019.104	      -0.072
    2019.192	      -0.026
    2019.216	       0.022
    2019.630	      -0.031
    2019.674	       0.021
    2019.742	       0.014
    2019.762	       0.040
    2019.786	       0.053
    2019.805	       0.036
    2019.918	       0.091
    2019.962	       0.055
    2020.112	      -0.046
    2020.137	      -0.033
    2020.180	      -0.009
    2020.243	      -0.017
    2020.287	       0.004
    2020.661	       0.047
    2020.680	      -0.011
    2020.724	      -0.060
    2020.768	      -0.039
    2020.792	      -0.025
    2020.811	      -0.031
    2020.855	       0.015
    2020.923	      -0.034
    2021.142	       0.027
    2021.162	       0.029
    2021.249	      -0.005
    2021.625	       0.007
    2021.668	       0.050
    2021.688	      -0.061
    2021.756	      -0.020
    2021.775	       0.022
    2021.800	       0.045
    2021.863	       0.030
    2021.888	      -0.104
    2021.896	      -0.082
    2021.929	      -0.093
    2021.932	      -0.095
    2021.973	      -0.109
    2021.975	      -0.095
    2022.019	      -0.095
    2022.041	      -0.095
    2022.063	      -0.099
    2022.107	      -0.071
    2022.126	      -0.063
    2022.170	      -0.193
    2022.173	      -0.167
    2022.214	      -0.115
    2022.238	      -0.160
    2022.279	      -0.116
    2022.630	      -0.097
    2022.633	      -0.057
    2022.655	      -0.014
    2022.701	      -0.001
    2022.718	      -0.043
    2022.762	      -0.034
    2022.767	      -0.009
    2022.784	      -0.054
    2022.808	      -0.006
    2022.811	       0.002
    2022.827	      -0.025
    2022.830	      -0.052
    2022.849	       0.011
    2022.874	       0.001
    2022.915	      -0.072
    2023.025	      -0.072
    2023.047	      -0.079
    2023.093	      -0.069
    2023.137	      -0.106
    2023.200	      -0.101
    2023.203	      -0.093
    2023.244	      -0.096
    2023.268	      -0.071
    2023.310	      -0.121
    2023.312	      -0.097
