AMSTERDAM (Reuters) – Dutch insurer NN Group on Thursday announced a 1 billion euros ($1.14 billion) share buyback, as demand for insurance remained strong in the second half of last year, driven by extreme weather and the COVID-19 pandemic. The largest insurer in the Netherlands said favourable business conditions almost doubled its operation capital generation in the last six months of 2021 to 804 million euros. Net profit jumped 42% to 1.86 billion euros, while operating result fell 5%, as claims in its reinsurance business rose. “The COVID-19 pandemic continued to dominate our daily lives …