fileMap = [
{year: "2025", file: FileAttachment("IGRF-13_declination_2025.csv") },
{year: "2020", file: FileAttachment("IGRF-13_declination_2020.csv") },
{year: "2000", file: FileAttachment("IGRF-13_declination_2000.csv") },
{year: "1980", file: FileAttachment("IGRF-13_declination_1980.csv") },
{year: "1960", file: FileAttachment("IGRF-13_declination_1960.csv") },
{year: "1940", file: FileAttachment("IGRF-13_declination_1940.csv") },
{year: "1920", file: FileAttachment("IGRF-13_declination_1920.csv") },
{year: "1900", file: FileAttachment("IGRF-13_declination_1900.csv") },
]