# date (year)	 area (km^2)
    2013.822	       0.000
    2013.860	       0.048
    2013.885	       0.005
    2013.904	      -0.064
    2013.910	      -0.083
    2013.929	      -0.073
    2013.997	       0.111
    2014.041	       0.224
    2014.079	       0.136
    2014.085	       0.313
    2014.216	       0.212
    2014.255	       0.196
    2014.649	       0.009
    2014.655	      -0.078
    2014.674	      -0.030
    2014.718	       0.216
    2014.737	       0.044
    2014.742	       0.060
    2014.893	       0.020
    2014.918	      -0.016
    2014.956	      -0.003
    2015.025	       0.006
    2015.044	      -0.049
    2015.156	       0.174
    2015.219	       0.337
    2015.244	       0.220
    2015.638	       0.019
    2015.701	      -0.044
    2015.707	       0.079
    2015.877	       0.053
    2015.882	       0.007
    2015.989	       0.003
    2016.033	      -0.110
    2016.145	       0.188
    2016.251	       0.054
    2016.295	      -0.065
    2016.776	       0.106
    2016.844	      -0.114
    2016.863	      -0.170
    2016.883	      -0.258
    2016.932	      -0.063
    2016.995	      -0.116
    2017.014	      -0.070
    2017.082	       0.030
    2017.101	       0.005
    2017.189	       0.119
    2017.195	       0.063
    2017.258	      -0.039
    2017.784	       0.018
    2017.847	      -0.070
    2017.959	      -0.086
    2017.984	       0.051
    2018.159	       0.084
    2018.636	       0.085
    2018.704	      -0.038
    2018.748	      -0.105
    2018.767	      -0.147
    2018.773	      -0.136
    2018.792	       0.072
    2018.855	      -0.133
    2018.942	      -0.122
    2018.967	      -0.285
    2018.986	      -0.130
    2019.030	      -0.178
    2019.142	      -0.038
    2019.162	       0.131
    2019.249	      -0.154
    2019.293	      -0.044
    2019.644	       0.004
    2019.668	      -0.161
    2019.775	      -0.038
    2019.781	       0.030
    2019.907	      -0.117
    2019.995	      -0.034
    2020.000	      -0.058
    2020.044	       0.013
    2020.063	       0.032
    2020.107	      -0.061
    2020.126	       0.047
    2020.131	       0.088
    2020.150	       0.006
    2020.169	       0.086
    2020.194	       0.059
    2020.306	       0.145
    2020.675	      -0.056
    2020.781	      -0.100
    2020.787	      -0.151
    2020.831	      -0.163
    2020.869	       0.061
    2020.918	      -0.003
    2020.962	      -0.110
    2021.049	      -0.055
    2021.068	       0.115
    2021.088	       0.043
    2021.093	       0.019
    2021.175	       0.089
    2021.181	       0.050
    2021.219	      -0.104
    2021.682	       0.031
    2021.707	      -0.086
    2021.751	      -0.065
    2021.789	      -0.145
    2021.814	      -0.147
    2021.890	      -0.135
    2022.123	      -0.199
    2022.164	      -0.201
    2022.167	      -0.228
    2022.208	      -0.159
    2022.233	      -0.073
    2022.255	       0.086
    2022.649	      -0.144
    2022.734	      -0.202
    2022.753	      -0.264
    2022.822	      -0.070
    2022.825	      -0.124
    2022.929	      -0.201
    2022.932	      -0.257
    2022.934	      -0.243
    2022.975	      -0.141
    2023.000	      -0.219
    2023.060	       0.167
    2023.238	       0.039
    2023.279	       0.031
