ES doc type with abstract classes?

SalaryDocument.cs

    [ElasticType(Name = "blsdata")]
    public class SalaryDocument : IElasticSearchDocumentType<string>
    {
        public SalaryDocument()
        {

        }

        /// <summary>
        /// document id
        /// </summary>
        public string id { get; set; }

        /// <summary>
        /// State abbreviation
        /// </summary>
        [ElasticProperty(Name = "PRIM_STATE")]
        public string State { get; set; }

        /// <summary>
        /// Geographical area name
        /// </summary>
        [ElasticProperty(Name = "AREA_NAME")]
        public string AreaName { get; set; }

        /// <summary>
        /// Job title
        /// </summary>
        [ElasticProperty(Name = "OCC_TITLE")]
        public string Title { get; set; }

        /// <summary>
        /// Type of salary information 
        /// </summary>
        [ElasticProperty(Name = "OCC_GROUP")]
        public string Type { get; set; }

        /// <summary>
        /// Annual salary info
        /// </summary>
        [ElasticProperty(Name = "A_MEAN")]
        public int AnnualAverage { get; set; }
        [ElasticProperty(Name = "A_MEDIAN")]
        public int AnnualMedian { get; set; }
        [ElasticProperty(Name = "A_PCT10")]
        public int AnnualLow { get; set; }
        [ElasticProperty(Name = "A_PCT25")]
        public int AnnualFirstQuartile { get; set; }
        [ElasticProperty(Name = "A_PCT75")]
        public int AnnualThirdQuartile { get; set; }
        [ElasticProperty(Name = "A_PCT90")]
        public int AnnuarlHigh { get; set; }

        //public AnnualSalary Annual { get; set; }

        //public HourlySalary Hourly { get; set; }

        /// <summary>
        /// Hourly salary info
        /// </summary>
        [ElasticProperty(Name = "H_MEAN")]
        public int HourlyAverage { get; set; }
        [ElasticProperty(Name = "H_MEDIAN")]
        public int HourlyMedian { get; set; }
        [ElasticProperty(Name = "H_PCT10")]
        public int HourlyLow { get; set; }
        [ElasticProperty(Name = "H_PCT25")]
        public int HourlyFirstQuartile { get; set; }
        [ElasticProperty(Name = "H_PCT75")]
        public int HourlyThirdQuartile { get; set; }
        [ElasticProperty(Name = "H_PCT90")]
        public int HourlyHigh { get; set; }

        /// <summary>
        /// Total employed in the area
        /// </summary>
        [ElasticProperty(Name = "TOTAL_EMP")]
        public int TotalEmployed { get; set; }

        /// <summary>
        /// Number of these jobs per 1000 people employed in the area
        /// </summary>
        [ElasticProperty(Name = "JOBS_1000")]
        public int JobsPer1000 { get; set; }

        /// <summary>
        /// A measurement of relative job quantity compared to the nation e.g.
        /// 0.5 indicates less jobs of this type in this area than nationally
        /// 1.0 indicates same ratio of jobs
        /// 1.8 indicates many more jobs of this type in this area than nationally
        /// </summary>
        [ElasticProperty(Name = "LOC_QUOTIENT")]
        public decimal LocationQuotient { get; set; }
    }

    public abstract class SalaryInfo
    {
        public int Average { get; set; }
        public int Median { get; set; }

        public int TenthPercentile { get; set; }
        public int FirstQuartile { get; set; }
        public int ThirdQuartile { get; set; }
        public int NintiethPertentile { get; set; }
    }

    public class AnnualSalary : SalaryInfo
    {
    }

    public class HourlySalary : SalaryInfo
    {
    }