# date (year)	 area (km^2)
    2013.822	       0.000
    2013.904	       0.060
    2013.910	       0.012
    2013.929	       0.053
    2013.948	       0.129
    2013.953	       0.079
    2013.997	       0.068
    2014.016	       0.184
    2014.079	       0.147
    2014.104	       0.149
    2014.216	      -0.006
    2014.255	       0.100
    2014.260	      -0.022
    2014.655	       0.069
    2014.674	      -0.011
    2014.718	       0.084
    2014.737	       0.199
    2014.742	       0.162
    2014.781	       0.179
    2014.893	       0.272
    2015.025	       0.036
    2015.044	       0.301
    2015.088	       0.118
    2015.156	       0.065
    2015.219	       0.026
    2015.682	       0.258
    2015.707	       0.040
    2015.877	       0.005
    2015.882	      -0.072
    2015.989	      -0.145
    2016.033	      -0.057
    2016.057	      -0.131
    2016.145	      -0.242
    2016.295	      -0.020
    2016.645	       0.048
    2016.776	       0.051
    2016.863	       0.213
    2016.883	       0.143
    2016.932	       0.197
    2016.995	       0.332
    2017.014	       0.413
    2017.038	       0.419
    2017.189	       0.194
    2017.258	       0.269
    2017.277	       0.284
    2017.803	      -0.026
    2017.890	      -0.104
    2017.959	      -0.043
    2018.090	       0.001
    2018.153	      -0.129
    2018.197	      -0.078
    2018.660	       0.121
    2018.748	       0.094
    2018.767	       0.175
    2018.855	       0.042
    2018.967	       0.137
    2019.030	       0.098
    2019.230	       0.214
    2019.249	       0.212
    2019.255	      -0.050
    2019.293	       0.038
    2019.668	      -0.009
    2019.781	       0.102
    2019.907	       0.068
    2019.975	      -0.010
    2020.000	      -0.068
    2020.044	      -0.220
    2020.063	      -0.190
    2020.150	      -0.147
    2020.169	      -0.334
    2020.781	      -0.080
    2020.787	      -0.159
    2020.918	      -0.136
    2020.956	      -0.064
    2020.962	      -0.081
    2021.025	      -0.156
    2021.068	      -0.093
    2021.219	      -0.128
    2021.288	      -0.152
    2021.701	       0.010
    2021.707	       0.010
    2021.751	       0.044
    2021.789	       0.067
    2021.890	      -0.009
    2022.036	       0.234
    2022.208	      -0.002
    2022.233	       0.090
    2022.734	       0.055
    2022.737	       0.032
    2022.822	      -0.016
    2022.825	      -0.015
    2022.929	       0.042
    2022.932	       0.029
    2022.934	       0.004
    2023.060	      -0.042
    2023.126	      -0.213
    2023.148	      -0.228
    2023.236	      -0.297
    2023.238	      -0.322
