The opening ceremony of this summer’s Paris Olympics cost around €100 million ($108 million), according to budget documents from the French parliament published by French media on Thursday. The high costs are also due to the fact that the opening ceremony in Paris wasn’t organized in a stadium for the first time. The event was held along the Seine in the city centre with athletes cruising the river in boats. The sum doesn’t include the costs for the massive police presence to ensure the safety during the ceremony. Otherwise, expenses and income for the Games were balanced, according to the bud…