Charged

to Other

Balance at

(Credited)

Accounts -

Beginning of

to Statement

Liabilities

Deductions,

Balance at

Year

of Operation

and Equity

Net

End of Year

Valuation allowances for deferred tax assets

Year ended December 31, 2023

$

477,969

$

56,998

$

—

$

—

$

534,967

Year ended December 31, 2022

$

409,810

$

68,159

$

—

$

—

$

477,969

Year ended December 31, 2021

$

337,824

$

71,986

$

—

$

—

$

409,810

Allowances for rebates, discounts and adjustments

Year ended December 31, 2023

$

1,349

$

63,475

$

(849

)

$

(60,964

)

$

3,011

Year ended December 31, 2022

$

14,443

$

39,082

$

1,050

$

(53,226

)

$

1,349

Year ended December 31, 2021

$

548

$

44,258

$

(734

)

$

(29,629

)

$

14,443